| Entries |
| Document | Title | Date |
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| 20080227006 | Stir-in pigment preparations for coloration of energy curable systems - A dry colorant composition is disclosed and contains (a) pigment; (b) inert carrier; and (c) rheological additive having the structure: | 09-18-2008 |
| 20080292979 | TRANSPARENT CONDUCTIVE MATERIALS AND COATINGS, METHODS OF PRODUCTION AND USES THEREOF - Transparent conductive materials, articles and films are described herein a) that are easily and efficiently produced, b) can be produced prior to application or in situ, c) are easily applied to surfaces and substrates or formed into articles, d) can be produced and used with materials and methods that are generally accepted by the flat panel display (FPD) industry, along with other industries that produce and utilize microelectronics, e) can be tailored to be photoimageable and patternable using accepted photolithography techniques, f) have superior optical properties and have superior film forming properties, including better adhesion to other adjacent layers, the ability to be laid down in very or ultra thin layers and the ability to remain transparent when laid down as thicker layers. Methods of producing and using these transparent conductive materials are also disclosed. | 11-27-2008 |
| 20090042116 | METHOD FOR PRODUCING alpha-FORM TITANYLPHTHALOCYANINE AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR COMPRISING alpha-FORM TITANYLPHTHALOCYANINE - The present invention relates to a method for producing an α-form titanylphthalocyanine represented by the formula (1): | 02-12-2009 |
| 20090053633 | P-TERPHENYL COMPOUND MIXTURE AND ELECTROPHOTOGRAPHIC PHOTORECEPTORS MADE BY USING THE SAME - An object of the invention is to provide: a p-terphenyl compound mixture useful as a charge-transporting agent which has improved solubility in organic solvents to thereby diminish a cracking phenomenon, which poses problems concerning photoreceptor characteristics, and can realize an electrophotographic photoreceptor having high sensitivity and high durability; and an electrophotographic photoreceptor employing the compound mixture. The invention relates to: a p-terphenyl compound mixture which includes two symmetric p-terphenyl compounds respectively represented by the following general formula (1) and general formula (2) and an asymmetric p-terphenyl compound represented by the following general formula (3) which has both a group of substituents of the compound represented by general formula (1) and a group of substituents of the compound represented by general formula (2); and an electrophotographic photoreceptor containing the compound mixture. | 02-26-2009 |
| 20090136858 | ELECTROPHOTOGRAPHIC TRANSFER PAPER - The present invention is an electrophotographic transfer paper where at least one side of the base paper is given a coating layer with a pigment and an adhesive agent to form coated paper and where the aforementioned adhesive contains a branched poly(meth)acrylamide copolymer having a cationic groups and/or anionic groups and also has a weight average molecular weight of 50,000 to 1,000,000. The electrophotographic transfer paper in the present invention has superior high-speed throughput performance despite low basis weight and a low coating weight, therefore, good for high-speed copy machine and printer properties, especially, when it contained a printability improver in the coating layer, it has a good ink adhesion property and surface strength required in offset printing. | 05-28-2009 |
| 20090142679 | CONDUCTIVE MEMBER, PROCESS CARTRIDGE USING THE CONDUCTIVE MEMBER, AND IMAGE FORMING DEVICE USING THE PROCESS CARTRIDGE - A conductive member includes a conductive supporting body, an electrostatic resistance adjusting layer formed on the conductive supporting body, and a space holding member, which is formed on each of both end portions of the electric resistance adjusting layer, has a material different from a material of the electric resistance adjusting layer, and constantly maintains a space between the electric resistance adjusting layer and the image carrier, wherein the electric resistance adjusting layer comprises a resin composition including thermoplastic resin containing at least polyamide elastomer and polyolefin block polymer and plural types of salt containing at least one type of salt selected from perchlorate and at least one type of salt selected from fluorine-containing organic anion salt. | 06-04-2009 |
| 20090214967 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE SAME - The present invention provides an electrophotographic photoreceptor having at least a photosensitive layer and a surface layer provided at a surface of the photosensitive layer The surface layer contains a first layer which is provided at the photosensitive layer side and has a refractive index of n | 08-27-2009 |
| 20090220875 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - The present invention provides an electrophotographic photoconductor having a support, at least an intermediate layer, and a photosensitive layer, the intermediate layer and photosensitive layer being laid in this order over the support, wherein the intermediate layer comprises an amorphous oxide semiconductor. | 09-03-2009 |
| 20090239165 | IMAGE FORMING APPARATUS USING AMORPHOUS SILICON PHOTOCONDUCTOR - An image forming apparatus is provided with an image forming unit including an amorphous silicon photoconductor. The amorphous silicon photoconductor includes a base and a photosensitive layer provided on the base. The photosensitive layer includes a highly resistive layer, a charge-injection inhibition layer, a photoconductive layer and a surface protecting layer successively laminated on the base. The thickness of the highly resistive layer is in the range of 1 μm to 4 μm. The thickness of the photosensitive layer is in the range of 15 μm to 25 μm and the absolute value of a solid light potential of the photosensitive layer is in the range of 20 to 100 V. | 09-24-2009 |
| 20090317733 | Quinone Compound, Electrophotographic Photoconductor and Electrophotographic Apparatus - Disclosed is a compound having excellent electron transporting ability, which is useful for electrophotographic photosensitive bodies or organic EL devices. Specifically disclosed is a novel quinone compound having a structure represented by general formula (I). Also disclosed is a highly sensitive, positive charge type electrophotographic photosensitive body for copying machines and printers, wherein the novel organic material is used as a charge-transporting material in a photosensitive layer. Also specifically disclosed is an electrophotographic photosensitive body having a photosensitive layer formed on a conductive base and containing a charge-generating material and a charge-transporting material, wherein the photosensitive layer contains at least one of the above-described compounds. Further disclosed is an electrophotographic apparatus using such a positive charge type electrophotographic photosensitive body. | 12-24-2009 |
| 20100015538 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS USING THE SAME, AND PROCESS CARTRIDGE - The present invention provides an electrophotographic photoconductor which includes at least a photosensitive layer and a surface protective layer over a support, wherein the surface protective layer contains a filler, a charge transporting material and a specific compound; and the photosensitive layer contains at least a charge transporting material; the charge transporting material contained in the photosensitive layer has an oxidation potential lower than the oxidation potential of the charge transporting material contained in the surface protective layer and is a specific compound. | 01-21-2010 |
| 20100104963 | NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS - A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is a substituted pyridine derivative; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles. | 04-29-2010 |
| 20100119962 | (METH)ACRYLIC FILM, AND MARKING FILM AND RECEPTOR SHEET USING THE SAME - The present application is directed to a film having high solvent resistance, in addition to high tensile strength and elongation characteristics. A (meth)acrylic film formed of: (A-1) an acidic group-containing (meth)acrylic polymer having a glass transition temperature (Tg) of 0° C. or higher obtained by copolymerizing a composition containing a monoethylenically unsaturated monomer as a main component and an unsaturated monomer having an acidic group; (B-1) a basic group-containing (meth)acrylic polymer having a glass transition temperature (Tg) of 0° C. or lower obtained by copolymerizing a composition containing a monoethylenically unsaturated monomer as a main component and an unsaturated monomer having a basic group; and (C) a compound containing a radical generating group. | 05-13-2010 |
| 20100124712 | IMAGE FORMING APPARATUS - The image forming apparatus includes a photoreceptor bearing an electrostatic image; a developing device developing the electrostatic image with a developer including a toner to form a toner image on the photoreceptor; a transferring device transferring the toner image onto a receiving material; and a cleaning device having a cleaning blade cleaning the surface of the photoreceptor. The photoreceptor includes an electroconductive substrate, a photosensitive layer and an outermost layer having projected portions thereon. The outermost layer and projected portions include the same crosslinked charge transport material. The outermost layer has a surface roughness property such that the number of projected portions having height greater than Rz/2 is from 40 to 90 in a length of 12 mm, wherein Rz represents ten-point mean roughness of the outermost layer. The tip of the cleaning blade is contacted with the photoreceptor at a linear pressure of from 80 g/cm to 150 g/cm. | 05-20-2010 |
| 20100151366 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - According to an aspect of the invention, an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on a surface of the conductive substrate is provided. In the electrophotographic photoreceptor, an outermost layer of the photosensitive layer containing a crosslinked product formed from at least one charge transporting material having at least one substituent selected from the group consisting of —OH, —OCH | 06-17-2010 |
| 20100196810 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor, includes: a conductive support; and a photosensitive layer provided on or above the conductive support, the photosensitive layer including an outermost surface layer at the farthest location from the conductive support, wherein the outermost surface layer contains: coated insulating inorganic particles obtained by subjecting insulating inorganic particles having a specific surface area of not more than about 300 m | 08-05-2010 |
| 20100203435 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS USING THE SAME - Disclosed is an electrophotographic photoreceptor including: an electroconductive substrate; a photosensitive layer arranged on or above the electroconductive substrate; and a surface layer arranged on or above the photosensitive layer, and containing about 90% or more by atom of gallium (Ga), oxygen (O) and hydrogen (H), and having an atomic number density of about 7.8×10 | 08-12-2010 |
| 20100233601 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor has at least an electroconductive substrate, and a photosensitive layer formed on or above the electroconductive substrate, wherein an outermost layer of the photoreceptor is a cured membrane of a composition containing at least one compound (a) having in a single molecule thereof a charge transporting skeleton and a chain polymerizable functional group, and at least one thermopolymerizable or photopolymerizable silicone polymeric radical polymerization initiator (b). | 09-16-2010 |
| 20100248100 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE-FORMING DEVICE, AND PROCESS CARTRIDGE - An electrophotographic photoreceptor includes a conductive support and, on the conductive support, at least a photosensitive layer, the electrophotographic photoreceptor comprising a surface layer that may be the same as or different from the photosensitive layer and that includes fluororesin particles and a fluorinated alkyl group-containing copolymer containing a repeating unit represented by the following Structural Formula A, and the content of quaternary ammonium salt in the surface layer being 50 ppm or less, wherein, in Structural Formula A, l represents a positive number of 1 or more; p represents 0 or a positive number of 1 or more; t represents a positive number of from 1 to 7; R | 09-30-2010 |
| 20100248101 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor comprising:
| 09-30-2010 |
| 20100255413 | IMAGING MEMBER - An imaging member is disclosed having a surface layer comprising a heat-sensitive material whose surface compatibility to printing agents, such as toners and inks, can be substantially reversed in response to small changes in temperature. The imaging member is suitable for use in lithographic and printing applications, permitting reversible switching between compatibility states of printing agents, such as between hydrophilic and hydrophobic states or oleophilic and oleophobic states, and enabling rapid production of images on a recording medium. The heat-sensitive material comprises an acrylamide polymer and a silicon material. | 10-07-2010 |
| 20100297543 | INTERFACIAL LAYER AND COATING SOLUTION FOR FORMING THE SAME - The present embodiments are generally directed to an improved imaging member exhibiting various advantages over conventional imaging members. More specifically, the present embodiments are directed to an improved interfacial layer formed from an aqueous-based coating solution which exhibits improved formation and coating properties, such as increased homogeneity and adhesion, and methods for making the same. The aqueous-based coating solution is environment-friendly and avoids the need to use more expensive organic solvents which involve higher safety risks in the manufacturing process. | 11-25-2010 |
| 20100297544 | FLEXIBLE IMAGING MEMBERS HAVING A PLASTICIZED IMAGING LAYER - The presently disclosed embodiments relate in general to electrophotographic imaging members, such as layered photoreceptor structural simplification, and material reformulation for making and using the same. More particularly, the embodiments pertain to the incorporation of a plasticizer into the charge transport layer such that an anticurl back coating is no longer needed for reduction or elimination of the layered photoreceptor curling. | 11-25-2010 |
| 20100310975 | Electrophotographic Photoreceptor, And Image Forming Apparatus And Process Cartridge Therefor Using The Photoreceptor - An electrophotographic photoreceptor, including an electroconductive substrate; and a photosensitive layer overlying the substrate, wherein the photosensitive layer comprises a complex azo pigment comprising an azo compound having the following formula (a): | 12-09-2010 |
| 20100310976 | PHOTOCONDUCTIVE DEVICE, AND TERAHERTZ WAVE GENERATION AND DETECTION APPARATUSES EACH USING THE PHOTOCONDUCTIVE DEVICE - A photoconductive device includes: a photoconductive layer configured to generate carriers upon irradiation with excitation light, a first electrode arranged on the photoconductive layer, a second electrode arranged on the photoconductive layer with a gap between the first and second electrodes, and a third electrode arranged in a region over which an electric field caused by voltages applied to the first and second electrodes or an electric field caused by irradiation with a terahertz wave extends. A depletion layer of the photoconductive layer is controllable by a voltage applied to the third electrode. | 12-09-2010 |
| 20100330472 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - There is provided an electrophotographic photoreceptor including a conductive substrate; an intermediate layer; a photosensitive layer; and a surface layer, in this order, the surface layer including two or more charge transporting materials each including a reactive substituent and respectively having mutually different ionization potentials, in an amount of 90% by weight or more relative to the total solid content of the surface layer, and the content ratio X of each of the two or more charge transporting materials satisfying the following Formula (1). X(n) represents a content ratio (weight %) of a charge transporting material that has the n | 12-30-2010 |
| 20100330473 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - The invention provides an electrophotographic photoreceptor having a surface protection layer that satisfies the following requirements: (1) including a crosslinked substance of at least one selected from a guanamine compound or a melamine compound, and at least one charge transporting material having at least one substituent selected from —OH, —OCH | 12-30-2010 |
| 20100330474 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE-FORMING APPARATUS - Subjects for the invention are: to provide an electrophotographic photoreceptor which has excellent electrical characteristics and which, even when repeatedly used over long, can stably form high-quality satisfactory images having high resolution; and to provide an electrophotographic photoreceptor cartridge and an image-forming apparatus each employing the electrophotographic photoreceptor. The invention provides an electrophotographic photoreceptor for use in an image-forming apparatus comprising a charging unit which charges an electrophotographic photoreceptor, an exposure unit which exposes the charged electrophotographic photoreceptor to light to form an electrostatic latent image on the electrophotographic photoreceptor, and a developing unit which develops the electrostatic latent image, wherein the electrophotographic photoreceptor comprises a conductive substrate and a photosensitive layer and the photosensitive layer contains a compound represented by the following formula (1). The photoreceptor is further characterized in that the exposure unit has an LED, or that the electrostatic latent image has a resolution of 1,200 dpi or higher, or that the electrostatic latent image is developed with a toner and the toner has an average degree of circularity as determined with a flow type particle image analyzer of 0.94-1.00, or that the image-forming apparatus is of the full-color tandem type. The invention further provides an electrophotographic photoreceptor cartridge and an image-forming apparatus each employing the electrophotographic photoreceptor. | 12-30-2010 |
| 20100330475 | IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE BEARING MEMBER - An image forming apparatus including an image bearing member having an electroconductive substrate on which are provided at least a photosensitive layer and a protection layer, in that sequence, a charging device that charges the surface of the image bearing member to form a latent electrostatic image thereon, a development device that develops the latent electrostatic image with a development agent containing toner to obtain a developed toner image, a cleaning device that removes toner remaining on the surface of the image bearing member and a lubricant material applicator that applies a lubricant material to the surface of the image bearing member, the protection layer containing a cured resin and a filler and the surface form of the protection layer having an arithmetical mean waviness Wa of from 0.05 to 0.3 μm and an average length WSm of profile elements of from 0.5 to 1.5 mm, which are obtained from a waviness profile obtained by filtering a coarse component with a λc profile filter of 0.25 mm and filtering a wavelength component longer than a waviness with a λf profile filter of 2.5 mm. | 12-30-2010 |
| 20110014556 | CHARGE ACCEPTANCE STABILIZER CONTAINING CHARGE TRANSPORT LAYER - The disclosed embodiments are directed to electrophotographic photoreceptors imaging members. More particularly, the imaging members of this disclosure comprise a charge transport layer comprising a charge transport molecule and a charge stabilizing compound to suppress the effects of corona effluents and provide stabilized charge acceptance during prolonged cycling, thereby improving print quality. | 01-20-2011 |
| 20110014557 | PHOTORECEPTOR OUTER LAYER - The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital, apparatuses. Embodiments pertain to an improved electrophotographic imaging member incorporating an outer layer having a nano- to micron-scale pattern imprinted into its surface to lower friction with the cleaning blade and improve print quality and performance. Embodiments also pertain to methods for making the improved imaging member. | 01-20-2011 |
| 20110020739 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A photoreceptor comprising an undercoat layer between a conductive support and a photosensitive layer, wherein the undercoat layer contains at least metal oxide microparticles coated with anhydrous silicon dioxide and a first binder resin, the photosensitive layer is a monolayered photosensitive layer containing at least a charge generation material and a charge transport material or a multilayered photosensitive layer formed of a charge generation layer containing a charge generation material and a charge transport layer containing a charge transport material stacked in this order or in an inverse order, and the charge generation material contains a crystal type oxotitanylphthalocyanine having peaks in an X-ray diffraction spectrum with Cu—Kα characteristic X-rays (0.15418 nm) at Bragg angles (2θ±0.2°) of 7.3°, 9.4°, 9.6°, 11.6°, 13.3°, 17.9°, 24.1° and 27.2°, in which a peak bundle formed by overlapping the peaks at 9.4° and 9.6° is a largest peak, and the peak at 27.2° is a second largest peak; and an X-type metal-free phthalocyanine having peaks in the X-ray diffraction spectrum at Bragg angles (2θ±0.2°) of 7.5°, 9.1°, 16.7°, 17.3° and 22.3°. | 01-27-2011 |
| 20110020740 | IMAGE FORMING APPARATUS - An image forming apparatus including a latent image bearing member, a charging device, a latent electrostatic image formation device, a development device, a transfer device, and a lubricant supplying device, the latent image bearing member satisfying (I), (II) and (III): | 01-27-2011 |
| 20110045390 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member having a support and a photosensitive layer formed on the support, wherein the photosensitive layer contains a boron complex which is a product of the reaction of a compound having a phenolic hydroxyl group and a carbonyl group with a boron halide. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member. | 02-24-2011 |
| 20110045391 | ORGANIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An organic photoreceptor, comprises: a conductive support; a photosensitive layer provided on the conductive support; and a protective layer provided on the photosensitive layer, wherein the protective layer contains alumina particles which contain 2 to 50 ppm of phosphorus atoms and is subjected to a surface treatment with a compound A having a reactive functional group and a curable compound B, and the protective layer is a cured layer including a cured product material formed by at least the compound A on the surfaces of the alumina particles and the curable compound B. | 02-24-2011 |
| 20110045392 | CHARGE-CARRIER TRANSPORT LAYER FOR AN ELECTRO-OPTICAL COMPONENT, METHOD FOR ITS PRODUCTION AND ELECTRO-OPTICAL COMPONENT - A charge-carrier transport layer for an electro-optical component includes an organic charge-carrier transport material. A plurality of first particles having a diameter ranging from 1 nm to 100 nm is incorporated in the organic charge-carrier transport material and contains a first transparent oxide. A plurality of second particles having a diameter between 100 nm and 1000 nm is also incorporated into the organic charge-carrier transport material and contains a second transparent oxide. The index of refraction of the plurality of second particles differs from the index of refraction of the organic charge-transport material. | 02-24-2011 |
| 20110053064 | OVERCOAT LAYER COMPRISING CORE-SHELL FLUORINATED PARTICLES - The presently disclosed embodiments are directed generally to an improved electrophotographic imaging member in which the overcoat layer incorporates core-shell fluorinated nano- or micro-particles encapsulated in a melamine shell to reduce torque and cleaning failures during the photoreceptor cleaning process. | 03-03-2011 |
| 20110059393 | IMAGE BEARING MEMBER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An image bearing member including an electroconductive substrate, a photosensitive layer overlying the electroconductive substrate, and a protection layer overlying the photosensitive layer, the photosensitive layer containing a diamine compound represented by the chemical structure 1, more of the diamine compound being disposed on the photosensitive layer side than the surface side relative to the midpoint in a depth direction of the protection layer: | 03-10-2011 |
| 20110070536 | OXIDE MATERIAL, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING DEVICE - An oxide material including gallium, zinc and oxygen, a ratio of the number of atoms of zinc to the number of atoms of gallium (number of atoms of zinc/number of atoms of gallium) being from about 0.01 to about 0.6 and a ratio of the number of atoms of oxygen to the sum of the number of atoms of gallium and the number of atoms of zinc (number of atoms of oxygen/(number of atoms of gallium+number of atoms of zinc)) being from about 1.0 to about 1.6, is disclosed. An electrophotographic photoreceptor including a layer which includes the oxide material is also disclosed. An electrophotographic photoreceptor including a substrate; and a photosensitive layer including gallium, oxygen and zinc is also disclosed. | 03-24-2011 |
| 20110070537 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR - An image forming method employing a photoreceptor and a polymerization toner, wherein the photoreceptor comprises a photosensitive layer provided on a surface of a cylindrical electroconductive substrate, a surface of the photoreceptor has a shape composed of plural lower portions and plural higher portions, a surface roughness of a top surface of the higher portions is 0.01 to 0.5 μm, and a volume based median particle diameter of the polymerization toner is 3 to 8 μm. | 03-24-2011 |
| 20110076602 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME - An electrophotographic photoconductor that is usable in an exposure light source having a wavelength of 405±20 nm, the electrophotographic photoconductor comprising a photosensitive layer including a charge generation layer and a charge transfer layer stacked in order on a conductive substrate,
| 03-31-2011 |
| 20110076603 | ORGANIC PHOTORECEPTOR, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An object of the invention is to provide an image forming apparatus and process cartridge both employing the organic photoreceptor by improving an abrasion resistance of the organic photoreceptor up to the same level as an amorphous silicone photoreceptor, the image blur and image flow problem liable to generate in high temperature and high moisture condition, and to provide an organic photoreceptor capable of obtaining a precise and a high quality dot image by short wavelength laser exposure. Provided is an organic photoreceptor having a conductive substrate, provided thereon at least a photo receiving layer and a protective layer in this order, wherein the protective layer comprises at least a resin layer obtained by a reaction between a chain polymerizable compound having a charge transportable structure represented by Formula (1) and a chain polymerizable compound without having a charge transportable structure. | 03-31-2011 |
| 20110086299 | LIGHT SHOCK RESISTANT PROTECTIVE LAYER - Embodiments pertain to a novel imaging member, namely, an imaging member or photoreceptor comprising a removable protective outer layer which comprises light-absorbing material which substantially prevents any light absorption by the overcoat layer. Thus, the light-absorbing material reduces the intrinsic light shock suffered by conventional overcoat layers without negatively impacting electrical properties of the overcoat layer while improving print quality. | 04-14-2011 |
| 20110086300 | PHOTORECEPTOR SURFACE LAYER COMPRISING SECONDARY ELECTRON EMITTING MATERIAL - Presently disclosed embodiments relate to an improved electrophotographic imaging member or photoreceptor comprising a surface layer on the photoreceptor, where the surface layer comprises secondary electron emitting materials that act as a robust electrically active layer. Photoreceptors incorporating such materials into or on the surface will exhibit an increase photoreceptor life and also a reduction the operating voltage of bias charge roll (BCR) charging systems while maintaining excellent charge uniformity. | 04-14-2011 |
| 20110104597 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic photosensitive member having a conductive support, an intermediate layer provided on the conductive support, and a photosensitive layer provided on the intermediate layer in which the intermediate layer contains a polyolefin resin containing a specific component at a specific mass ratio, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member. | 05-05-2011 |
| 20110104598 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER,PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - The electrophotographic photosensitive member contains a support; and a first intermediate layer, a second intermediate layer and a photosensitive layer which are provided on the support in this order, in which the second intermediate layer contains a polyolefin resin and a metal oxide particle having a volume-average particle diameter of 20 nm or less, and the first intermediate layer contains a metal oxide particle, and the volume-average particle diameter of the metal oxide particle contained in the first intermediate layer is 10 times or more to 200 times or less as large as the volume average particle diameter of the metal oxide particle contained in the second intermediate layer. | 05-05-2011 |
| 20110104599 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - The electrophotographic photosensitive member includes a support; an intermediate layer, a charge generation layer and a charge transport layer which are provided on a conductive support in this order, in which the intermediate layer contains an ethylene-acrylic acid binary copolymer and a polyolefin resin in which repeating structural units are contained in a particular ratio. | 05-05-2011 |
| 20110104600 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND IMAGE FORMING APPARATUS USING THE SAME - A function separation type electrophotographic photoconductor comprising: a conductive support; an undercoat layer formed on the conductive support; a charge generation layer formed on the undercoat layer; and a charge transfer layer formed on the charge generation layer, the undercoat layer containing at least a binder resin and metal oxide microparticles subjected to surface treatment with anhydrous silicon dioxide, the charge transfer layer containing at least a binder resin and an enamine compound represented by the following general formula (1): | 05-05-2011 |
| 20110111334 | LIGHT SHOCK RESISTANT OVERCOAT LAYER - Embodiments pertain to a novel imaging member, namely, an imaging member or photoreceptor comprising an overcoat layer which comprises light-absorbing material that improves print quality. The light-absorbing material reduces the intrinsic light shock suffered by conventional overcoat layers without negatively impacting electrical properties of the overcoat layer. | 05-12-2011 |
| 20110117483 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Aspects of the present invention provide an electrophotographic photosensitive member in which an intermediate layer contains metal oxide particles, an organic resin, and a specific compound (fluorenone derivative), and a process cartridge and an electrophotographic apparatus including the electrophotographic photosensitive member. | 05-19-2011 |
| 20110117484 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a photoconductive layer, an intermediate layer, and a surface layer. When Si+C atom density in the surface layer is represented by D | 05-19-2011 |
| 20110129768 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING THE SAME, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - According to aspects of the present invention, an electrophotographic photosensitive member includes a surface layer comprising a cured resin obtained by polymerizing a compound having at least one polymerizable functional group. Aspects of the present invention provide an electrophotographic photosensitive member whose surface layer comprises a compound (urea derivative) having a certain structure, a method for producing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus including the electrophotographic photosensitive member. | 06-02-2011 |
| 20110136049 | IMAGING MEMBERS COMPRISING FLUOROKETONE - Improved electrophotographic imaging members which pertain to the incorporation of a fluoroketone into the charge transport layer to achieve a structurally simplified flexible electrophotographic imaging member that remains flat without the need for an anticurl back coating layer. The imaging member is both more slippery and has a reduced coefficient of friction, thus extending service life. | 06-09-2011 |
| 20110136050 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME - An electrophotographic photoconductor that is exposed by an exposure light source having a wavelength of 405±20 nm, the electrophotographic photoconductor comprising:
| 06-09-2011 |
| 20110143273 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention relates to an electrophotographic photosensitive member obtained by providing an intermediate layer and a photosensitive layer on a conductive support in the stated order, the electrophotographic photosensitive member being characterized in that the intermediate layer contains a specific polyolefin resin and a specific organic electron-transporting substance, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member. | 06-16-2011 |
| 20110151363 | UNDERCOAT LAYER AND IMAGING MEMBERS COMPRISING SAME - Disclosed are undercoat layers comprising a metal oxide, a polymer, and a citrate of Formula (I): | 06-23-2011 |
| 20110151364 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor exhibiting not only excellent durability together with high sensitivity but also excellent image reproduction, which is suitable for an image forming method by which imagewise exposure is performed employing a light source having an emission wavelength peak being in the range of 350-500 nm to form a high density electrostatic latent image on a photoreceptor, and also provided are an image forming method employing the electrophotographic photoreceptor, and an image forming apparatus thereof. Also disclosed is an electrophotographic photoreceptor possessing a conductive support and provided thereon, a charge generation layer and a charge transport layer, wherein the charge generation layer possesses a pyranthrone pigment, and the charge transport layer possesses at least one of compounds represented by Formula (1) or Formula (2) described below: | 06-23-2011 |
| 20110159418 | HYDROXYGALLIUM PHTHALOCYANINE COMPOSITE PIGMENT, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR CONTAINING THE SAME, AND IMAGE FORMING DEVICE AND PROCESS CARTRIDGE FOR IMAGE FORMING DEVICE USING THE SAME - A hydroxygallium phthalocyanine composite pigment, which is a composite pigment wherein an azo compound expressed by the following general formula (a) is conjugated to a hydroxygallium phthalocyanine pigment, wherein the hydroxygallium phthalocyanine composite pigment has diffraction peaks at least at 7.5°, 9.9°, 12.5°, 16.3°, 18.6°, 25.1°, and 28.3° on an X-ray diffraction spectrum with Bragg angle of 2θ±0.2°, using Cu—Kα X-rays: | 06-30-2011 |
| 20110159419 | IMAGE BEARING MEMBER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An image bearing member including an electroconductive substrate, a charge generation layer, a charge transport layer and, a cross-linked type charge transport layer, the cross-linked type charge transport layer having a structure unit deriving from a first component, a second component, and a third component, the first component containing a copolymer having a cyclic structure and/or a structure represented by a Chemical structure 1 as a repeating unit, | 06-30-2011 |
| 20110171570 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD OF PRODUCING SAME, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - The invention provides an electrophotographic photoreceptor having at least: a substrate; a photosensitive layer provided on the substrate; and an overcoat layer provided on the photosensitive layer. The overcoat layer of the photoreceptor includes at least: a cross-linked component that is obtained by cross-linking of at least one selected from a guanamine compound or a melamine compound and a charge-transporting material having at least one substituent group selected from —OH, —OCH | 07-14-2011 |
| 20110183241 | PROTECTIVE PHOTORECEPTOR OUTER LAYER - Embodiments pertain to a novel imaging member, namely, an imaging member or photoreceptor comprising a protective outer layer which comprises light-absorbing composition that substantially prevents any light absorption by the overcoat layer. The composition comprises a low strength thermal plastic resin and a high optical density yellow dye. Thus, the light-blocking protective layer reduces the intrinsic light shock suffered by conventional overcoat layers without negatively impacting electrical properties of the overcoat layer and while improving print quality. | 07-28-2011 |
| 20110183242 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes: a conductive substrate; a photosensitive layer including a charge-generating layer containing a charge-generating material and a charge-transporting layer containing a charge-transporting material, the charge-transporting layer having a hole mobility of about 5.0×10 | 07-28-2011 |
| 20110183243 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND ELECTROPHOTOGRAPHIC IMAGING APPARATUS INCLUDING THE PHOTORECEPTOR - The disclosure provides an electrophotographic photoreceptor and an electrophotographic imaging apparatus including the photoreceptor, wherein the electrophotographic photoreceptor comprises: a conductive substrate; a charge generating layer formed on the conductive substrate; a charge transport layer formed on the charge generating layer; and an overcoat layer formed on the charge transport layer, wherein the ratio (R2/R1) of the surface resistance value (R2) of the overcoat layer to the surface resistance value (R1) of the charge transport layer is from about 0.01 to about 1.5. | 07-28-2011 |
| 20110195353 | SINGLE LAYER PHOTORECEPTOR COMPRISING HIGH MOBILITY TRANSPORT MIXTURES - The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital, apparatuses. In particular, the present embodiments pertain to an improved imaging member comprising a single layer in which the single layer further comprises a combination of one or more high mobility hole (charge) transport molecules and electron transport molecules. | 08-11-2011 |
| 20110195354 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - The present invention provides an electrophotographic photoreceptor including a photosensitive layer on a conductive substrate, an outermost layer of the electrophotographic photoreceptor including a cured film of a composition which includes at least one charge transporting compound (a) having a charge transporting skeleton and at least two structural units represented by R—O—CO—CR′═CH—R″ in the same molecule, and at least one polycarbonate resin; a ratio (I | 08-11-2011 |
| 20110200924 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE PHOTORECEPTOR - An electrophotographic photoreceptor, including an electroconductive substrate; a photosensitive layer; a crosslinked surface layer comprising α-alumina and tin oxide, wherein a first one-dimensional data array obtained from measuring a concavo-convex shape of the surface of the photoreceptor is subjected to a wavelet conversion to be separated into 6 frequency components, the one-dimensional data array of the lowest frequency component is further thinned so as to have 1/40 data arrays to obtain a second one-dimensional data array, the second one-dimensional data array is further subjected to the wavelet conversion to be separated into additional 6 frequency components, and wherein when relationships between respective arithmetic average roughness (WRa) (y-axis) of the 12 frequency components and the frequency components (x-axis) are graphed, at least WRa (214 to 551 μm) and WRa (26 to 106 μm) have a folding point or a maximum point. | 08-18-2011 |
| 20110200925 | IMAGE BEARING MEMBER, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An image bearing member including an electroconductive substrate, and a photosensitive layer provided overlying the electroconductive substrate, the photosensitive layer containing at least one charge transport materials selected from the group consisting of a naphthalene tetracarboxylic acid diimide-isoindol derivative represented by the following chemical structure 1, a naphthalimide-isoindol derivative represented by the following chemical structure 2, and a triphenyl amine-isoindol derivative represented by the following chemical structure 3, | 08-18-2011 |
| 20110207038 | SLIPPERY SURFACE IMAGING MEMBERS - A flexible imaging member comprising a slippery charge transport layer including a novel low surface energy polymer binder and a charge transport compound in the layer. In specific embodiments, the novel low surface energy polymer binder in the charge transport layer is a bisphenol A polycarbonate containing short polysiloxane segments present in the polycarbonate backbone—thus eliminating the light scattering effect to render optical clarity—and the charge transport compound is a diamine hole transporting species. The imaging member does include an anticurl back coating to maintain flatness. | 08-25-2011 |
| 20110207039 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, CURED FILM, AND ORGANIC ELECTROLUMINESCENT DEVICE - An electrophotographic photoreceptor is disclosed, in which an outermost surface layer of the electrophotographic photoreceptor is made of a cured film of a composition including a compound represented by the following Formula (M1) and a charge transporting material having a chain polymerizable functional group: | 08-25-2011 |
| 20110207040 | IMAGE HOLDING MEMBER FOR IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An image holding member for an image forming apparatus includes: a substrate; and a photosensitive layer on the substrate, the photosensitive layer containing a compound including a partial structure represented by the following Formula (II-2) | 08-25-2011 |
| 20110207041 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - The present invention provides an electrophotographic photoreceptor including at least an electroconductive substrate and a photosensitive layer provided on or above the electroconductive substrate, wherein an outermost layer of the electrophotographic photoreceptor is a layer composed of a cured film of a composition including at least one of compound having a chain-polymerizable functional group and a charge-transportable backbone in the molecule thereof, a polymerization initiator and a radical deactivator. | 08-25-2011 |
| 20110217640 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE-FORMING APPARATUS - An electrophotographic photoconductor includes a base, an undercoat layer that contains a metal oxide and an electron-accepting material and has a thickness of about 3 μm or more and about 15 μm or less, and a photosensitive layer containing a polymer having a repeating unit represented by general formula (1) | 09-08-2011 |
| 20110217641 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING METHOD - Reduced can be interferential streaks produced in a halftone image when using a photoreceptor support (also called a drawn tube) having been subjected to tool bit cutting processing, and provided can be an electrophotographic photoreceptor capable of obtaining high quality in response to the light printing field or the like and an image forming method employing the electrophotographic photoreceptor. Also disclosed is an electrophotographic photoreceptor possessing a cylindrical support and provided thereon, a photosensitive layer, the cylindrical support possessing a processing profile regularly fanned along a central axis, provided on a circumferential surface of the cylindrical support, wherein the processing profile satisfies Formula 1: Formula 1 ΔL≧10 μm, where ΔL, represents a difference between a processing period width and another processing period width in a central axis direction of the cylindrical support in an image region. | 09-08-2011 |
| 20110229808 | CURL-FREE IMAGING MEMBERS WITH A SLIPPERY SURFACE - Present embodiments are directed to the improvement of flexible imaging members used in electrophotography. More particularly, embodiments pertain to a structurally simplified curl-free flexible electrophotographic imaging member without the need for an anticurl back coating, having a functionally improved top outermost exposed slippery imaging layer which furthers extends service life, and provides a process for making and using the member. | 09-22-2011 |
| 20110229809 | IMAGE FORMING APPARATUS, AND PROCESSING CARTRIDGE - The present invention provides an image forming apparatus including: an electrophotographic photoreceptor; a charging unit; an electrostatic latent image forming unit that forms an electrostatic latent image; a developing unit that develops the electrostatic latent image formed at the electrophotographic photoreceptor by a developer to form a toner image, the developing unit storing the developer containing a toner having toner particles containing a crystalline resin and having a shape factor SF1 of from 100 to 150, a volume average particle diameter of from 3 to 6 μm, and fluorocarbon-based resin particles as an external additive; a transfer unit; and a cleaning unit that cleans the surface of the electrophotographic photoreceptor with a blade containing urethane rubber, the blade disposed applying a pressure to the electrophotographic photoreceptor surface of 0.20 mN/mm or more. | 09-22-2011 |
| 20110229810 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoconductor includes a base, a photosensitive layer formed on the base, and an overcoat layer formed on the photosensitive layer, wherein the overcoat layer includes gallium, oxygen, and hydrogen, and the intensity ratio (I | 09-22-2011 |
| 20110236810 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - The electrophotographic photoreceptor includes a substrate and a photosensitive layer disposed on the substrate, wherein a surface layer of the electrophotographic photoreceptor contains fluorine-containing polymer particles and a dispersion aid for the fluorine-containing polymer particles, and the surface layer has convex portions with diameters of from 200 μm to 500 μm spaced at an average interval of from 600 μm to 950 μm. | 09-29-2011 |
| 20110256474 | IMAGING MEMBERS HAVING STRESS/STRAIN FREE LAYERS - The presently disclosed embodiments relate in general to electrostatography comprising improved features in the flexible imaging member that enhance function when used in the electrostatographic imaging system. These embodiments pertain, more particularly, to a structurally simplified curl-free flexible electrostatographic imaging member belt containing a stress/strain free ground strip layer and stress/strain free imaging layer(s) to improve dynamic belt cyclic motion quality and extend service life. | 10-20-2011 |
| 20110256475 | IMAGING MEMBERS HAVING A NOVEL SLIPPERY OVERCOAT LAYER - The presently disclosed embodiments relate in general to electrophotographic imaging members which include a protective overcoat layer comprising specific low surface energy polycarbonates of excellent optical clarity and having a slippery and adhesive surface to impact toner image transfer efficiency to receiving papers and effect contact friction reduction by which imaging members abrasion/wear resistance is enhanced. The present embodiments also disclose a process for making and using these members. | 10-20-2011 |
| 20110287350 | ELECTROPHOTOGRAPHIC APPARATUS AND ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - An electrophotographic apparatus and an electrophotographic photosensitive member for use in the electrophotographic apparatus are provided. The number of intermediate layers between a photoconductive layer and a surface layer is an odd number more than 2, and the refractive index monotonically decreases from the photoconductive layer toward the surface layer. The refractive index of an odd-numbered intermediate layer is in a predetermined range of the geometrical mean of the refractive indices of the two layers adjacent to the odd-numbered intermediate layer, and the product of the refractive index and the thickness is in a specific range of an odd multiple of λ/4n. The sum of the products of the refractive indices and the thicknesses of one or more intermediate layers disposed between at least two odd-numbered intermediate layers is in a range of −π/2<θ<π/2 in the terms of phases. | 11-24-2011 |
| 20110287351 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor having a photosensitive layer on a conductive support, wherein the photosensitive layer comprises a pigment containing an adduct of titanyl phthalocyanine and 2,3-butanediol, and a ratio of an absorbance at a wavelength of 780 nm of the photosensitive layer (referred to as Abs780) divided by an absorbance at a wavelength of 700 nm of the photosensitive layer (referred to as Abs700) is 0.8 to 1.1, the ratio being referred to as Abs780/Abs700, and Abs780 and Abs700 each being calculated from a relative reflectance spectrum of the electrophotographic photoreceptor, wherein the relative reflectance spectrum is determined using an aluminum conductive support using a reflectance spectrum of the aluminum conductive support as a base line. | 11-24-2011 |
| 20110294053 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE-FORMING APPARATUS, AND ELECTROPHOTOGRAPHIC CARTRIDGE - When an abutting pressure of the cleaning blade on a photoreceptor is increased, a chattering occurs due to the so-called a stick-slip phenomenon that the blade repeatedly undergoes sticking to the outermost surface of the photoreceptor and slipping thereon. As a result, a possibility of noise generation becomes higher and there is a possibility that toner particles might pass through during slipping to cause a cleaning failure, resulting in a streaky image defect. There is also a higher possibility that the so-called a filming phenomenon might occur, in which a component of the toner sticks to the photoreceptor surface by the action of the blade pressure and becomes difficult to remove, so as to lead to persistent image defects. Furthermore, since the photoreceptor is rotated with toners in the state of being strongly pressed thereagainst, the image defects are apt to be caused due to peripheral-direction scratches. An electrophotographic photoreceptor is provided in which the outermost layer of the photoreceptor contains a specific charge-transporting material and a specific binder resin. | 12-01-2011 |
| 20110300474 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - An electrophotographic photosensitive member having a surface layer containing a polymeric product obtained by polymerizing a specific adamantane compound, a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member, and a process for producing the electrophotographic photosensitive member. | 12-08-2011 |
| 20110300475 | Electrophotographic Photoconductor and Image-Forming Apparatus - An electrophotographic photoconductor includes a photosensitive layer on a conductive base, in which 1) the photosensitive layer includes a charge-generating layer including a charge-generating material, and a charge-transport layer including a charge-transport material and a binder resin, the charge-generating layer and the charge-transport layer being stacked, in that order, on the conductive base, and the charge-transport layer having a yield strain of about 5%-25%, or 2) the photosensitive layer includes a charge-generating material, a charge-transport material, and a binder resin in the same layer and has a yield strain of about 5%-25%, corresponding to the yield strain measured using a 10 mm×30 mm rectangular, sample having a thickness of 30 μm with both 10-mm sides held at an initial load of 1 N, a strain rate of 0.5 %/min, and a temperature of 30°C., in which the electrophotographic photoconductor is used as an image-bearing member. | 12-08-2011 |
| 20110305981 | IMAGING MEMBERS HAVING IMPROVED IMAGING LAYERS - The presently disclosed embodiments are directed to imaging members used in electrostatography. More particularly, the embodiments pertain to electrophotographic imaging members which have imaging layer(s) formulated to comprise of a novel A-B diblock copolymer binder consisting of two segmental blocks of a bisphenol polycarbonate and a phthalic acid which provides chemical vapor contaminant resistive property. The present embodiments provide superior copy printout quality. | 12-15-2011 |
| 20110311907 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING METHOD - Reduced are interferential streaks in a halftone image, which are produced when using a cylindrical photoreceptor conductive substrate having been subjected to tool bit cutting processing, and provided are an electrophotographic photoreceptor capable of obtaining high image quality in response to a light printing field or the like and an image forming method employing the electrophotographic photoreceptor. Disclosed is an electrophotographic photoreceptor possessing a cylindrical substrate having been finished via cutting processing and provided thereon, a photosensitive layer, wherein among peaks other than at a lag of 0 in a correlogram of a substrate surface profile in a direction along a central axis of the substrate, a mean value from a maximum peak in height to a third peak in height is 0.3-0.8, each of the peaks in height corresponding to an autocorrelation coefficient. | 12-22-2011 |
| 20110318675 | IMAGING MEMBERS HAVING AN ENHANCED CHARGE BLOCKING LAYER - The presently disclosed embodiments are directed to layer(s) that are useful in imaging apparatus members and components, for use in electrophotography, including digital, apparatuses. More particularly, the present embodiments provide the negatively charged electrophotographic imaging members with a novel cross-linked charge blocking undercoat layer, which is created to comprise of a binary composition of melamine and formaldehyde or a triple composition consisting of a hydroxyl functional acrylic polyol binder and a methylolation of melamine-formaldehyde, and methods for making the same. The charge blocking layer provides stabilized cyclic photo-electrical properties, enhanced mechanical adhesion bonding, and improved copy print out quality for service life extension. | 12-29-2011 |
| 20110318676 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, METHOD FOR PREPARING THE SAME, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoconductor includes a conductive substrate and an outermost surface layer on the conductive substrate. The outermost surface layer contains a copolymer (a) derived from a reactive monomer having charge transport property and a reactive monomer having no charge transport property, and a polymer prepared by polymerizing, in the presence of the copolymer (a), a reactive monomer (b) that has a solubility parameter (SP value) different from a solubility parameter (SP value) of the reactive monomer having no charge transport property by about 2 (cal/cm | 12-29-2011 |
| 20110318677 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoconductor includes a conductive substrate and an outermost surface layer formed on the conductive substrate and containing a binder resin and a copolymer derived from a reactive monomer having charge transport property and a reactive monomer having no charge transport property, the copolymer having a side chain with 4 or more carbon atoms in a constitutional unit derived from the reactive monomer having no charge transport property. | 12-29-2011 |
| 20110318678 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member is configured such that the average value Hx_ave of the content of hydrogen atoms in a central portion area of a photoconductive layer in a cylindrically axial direction thereof, the content Hx of the hydrogen atoms at an arbitrary point in the central portion area, the average value Hy_ave of the content of the hydrogen atoms in an end area of the photoconductive layer in the cylindrically axial direction thereof, and the content Hy of the hydrogen atoms at an arbitrary point in the end area satisfy 10≦Hx_ave≦30, Hx| 12-29-2011 | |
| 20120003574 | ELECTROPHOTOGRAPHY PHOTORECEPTOR, METHOD OF MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHY DEVICE USING THE SAME - A positive-charging electrophotography photoreceptor includes a laminated structure having a conductive supporting member, a charge transport layer formed of at least a hole transport material and a first binder resin, and a charge generation layer formed of at least a charge generation material, hole transport material, electron transport material, and second binder resin. The charge transport layer is disposed between the conductive supporting member and the charge generation layer. The content of the charge generation material in the charge generation layer is in a range exceeding 0.7 wt % and less than 3.0 wt % of the charge generation layer. | 01-05-2012 |
| 20120003575 | IMAGING MEMBERS HAVING A CHEMICAL RESISTIVE OVERCOAT LAYER - The presently disclosed embodiments are directed to imaging members used in electrostatography. More particularly, the embodiments pertain to electrophotographic imaging members which have an added-on protective overcoat layer formulated to comprise of a novel A-B diblock copolymer comprising two segmental blocks of a bisphenol polycarbonate and an organic acid terminal which provides chemical vapor contaminant resistive property. The overcoat layer may further be formulated to include small quantity of charge transport compound. The present embodiments provide superior copy printout quality. | 01-05-2012 |
| 20120003576 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - The charge generation layer of an electrophotographic photosensitive member is made to contain a specific amine compound in order to provide an electrophotographic photosensitive member that can output images that are practically free from an image flaw or have less image flaws attributable to a ghost phenomenon under low temperature and low humidity environment and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. | 01-05-2012 |
| 20120009513 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - To provide an electrophotographic photoconductor, containing: a conductive support; a photosensitive layer provided above the conductive support; and a hardened protective layer provided above the photosensitive layer, wherein the hardened protective layer contains a hardened product of a radical polymerizable compound containing an adamantane skeleton. | 01-12-2012 |
| 20120015290 | IMAGE HOLDING MEMBER FOR IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An image holding member for an image forming apparatus is disclosed which the image holding member includes a support and a photosensitive layer disposed on or above the support, the photosensitive layer including a compound including a partial structure represented by the following Formula (A), wherein Ar represents a substituted or unsubstituted phenyl group, a substituted or unsubstituted monovalent polynuclear aromatic hydrocarbon group having from 2 to 10 aromatic rings, a substituted or unsubstituted monovalent condensed aromatic hydrocarbon group having from 2 to 10 aromatic rings, or a substituted or unsubstituted monovalent aromatic heterocyclic group; q represents 0 or 1; and Each n each independently represent an integer of from 0 to 7. | 01-19-2012 |
| 20120021345 | PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is to provide a photoelectric conversion device including an organic compound layer which contains polymer (a) having partial structures represented by the following formulae (1) and (2) respectively. In the formula, R | 01-26-2012 |
| 20120021346 | IMAGE BEARING MEMBER AND IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE USING SAME - An image bearing member having a substrate and a layer provided overlying the substrate, which has a cured material in which a compound comprising three or more methylol groups and a charge transport group is cross-linked. | 01-26-2012 |
| 20120028176 | IMAGING MEMBERS COMPRISING STRUCTURED ORGANIC FILMS - A photoreceptor comprising a composite structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film includes a secondary component and may be a multi-segment thick structured organic film. | 02-02-2012 |
| 20120028177 | IMAGING MEMBERS COMPRISING CAPPED STRUCTURED ORGANIC FILM COMPOSITIONS - A imaging member, such as a photoreceptor, comprising a capped structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film. | 02-02-2012 |
| 20120028178 | PHOTORECEPTOR OUTER LAYER AND METHODS OF MAKING THE SAME - The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital apparatuses. Embodiments pertain to an improved electrophotographic imaging member used in customer replaceable units (CRU) comprising a very thin outer layer on the imaging member surface, where the outer layer comprises healing materials that act as a barrier against moisture and/or surface contaminants. The improved imaging member exhibits improved xerographic performance, such as reduced wear and deletions in high humidity conditions. | 02-02-2012 |
| 20120034555 | ANTI-STATIC AND SLIPPERY ANTI-CURL BACK COATING - The presently disclosed embodiments relate generally to the formulation of an anticurl back coating layer that renders imaging apparatus flexible members and components their desirable flatness, for use in electrostatographic, including digital apparatuses. More particularly, the embodiments pertain to an imaging member comprising an anticurl back coating layer formulated to comprise a polymer blend of an anti-static polymer and a low surface energy A-B diblock copolymer polymer and an adhesion promoter. The embodiments provide an imaging member belt with the anticurl back coating that is electrically conductive and also substantially reduces its surface contact friction to help suppress/eliminate tribo-electrical charge build-up at the backside of the imaging member belt under normal machine imaging member belt operational conditions in the field. | 02-09-2012 |
| 20120040282 | IMAGING DEVICES COMPRISING STRUCTURED ORGANIC FILMS - An imaging member for a xerographic liquid immersion development machine having an outermost layer including a solvent resistant structured organic film (SOF) having a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be multi-segment thick. | 02-16-2012 |
| 20120040283 | IMAGING MEMBERS FOR INK-BASED DIGITAL PRINTING COMPRISING STRUCTURED ORGANIC FILMS - An imaging member for ink-based digital printing having an outermost layer including a structured organic film (SOF) having a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be multi-segment thick. | 02-16-2012 |
| 20120045715 | SLIPPERY AND CONDUCTIVITY ENHANCED ANTICURL BACK COATING - The presently disclosed embodiments relate generally to the formulation of an anticurl back coating layer that renders imaging apparatus flexible members and components their desirable flatness, for use in electrostatographic, including digital apparatuses. More particularly, the embodiments pertain to an imaging member comprising an anticurl back coating layer formulated to comprise conductive carbon nanotubes dispersion in a polymer blend comprising three film-forming thermoplastic polymers to: (a) render electrical conductivity effect for tribo-electrical charge elimination (b) impart static dissipation capability, and (c) provide surface energy lowering effect for contact friction reduction to ease imaging member belt drive as well as cutting tribo-electrical charge build-up under normal imaging member belt operational conditions in the field. | 02-23-2012 |
| 20120058422 | PHOTORECEPTOR FOR ELECTROPHOTOGRAPHY, PROCESS FOR PRODUCING THE SAME, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is a photoreceptor for electrophotography, a process for producing the photoreceptor, and an electrophotographic apparatus that includes the photoreceptor. The photoreceptor has a photosensitive layer which contains a resin binder that is a copolymerized polyallylate resin. An electrophotographic apparatus having a photoreceptor drum that includes this photoreceptor has a reduced surface frictional resistance throughout the printing period from the beginning to after printing, thus reducing the amount of surface wear while producing satisfactory images. | 03-08-2012 |
| 20120064442 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoreceptor is provided, which includes: a substrate; a photosensitive layer; and a surface protective layer, in this order, in which the protective layer contains a crosslinked product of a curable charge transporting material in a content of from about 90 to 98% by weight, and fluorinated resin particles in a content of from about 2 to 10% by weight, and the protective layer satisfies Formula (1): 0.5≦b/a≦1, wherein, “a” represents a ratio of fluorine atoms to the sum of carbon atoms, oxygen atoms, and fluorine atoms present in a region of the protective layer ranging from the photosensitive layer side surface thereof to a point corresponding to about ⅔ of the thickness thereof, and “b” represents the ratio in a region of the protective layer ranging from the outer surface thereof to a point corresponding to about ⅓ of the thickness thereof. | 03-15-2012 |
| 20120064443 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC IMAGE FORMING METHOD, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An N-phenyl-diphenylisoindole derivative having the following formula (I): | 03-15-2012 |
| 20120077116 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS - An organic photoreceptor comprising a cylindrical support having thereon at least a charge generation layer and a charge transport layer, the cylindrical support having a corrugation processing profile along a central axis direction of the cylindrical support provided on a circumferential surface of the cylindrical support, wherein the corrugation processing profile meets Formula 1: | 03-29-2012 |
| 20120094223 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus includes an electrophotographic photoconductor that includes an outermost surface layer containing a binder resin having a structural unit represented by general formula (A) below and a charge transporting material having a butadiene trimer structure in a single molecule, a charging unit that charges the electrophotographic photoconductor, an electrostatic latent image forming unit that forms an electrostatic latent image, a toner image forming unit that forms a toner image, and a transfer unit that transfers the toner image formed on the electrophotographic photoconductor onto a transfer-receiving body, | 04-19-2012 |
| 20120100472 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - To provide an electrophotographic photoreceptor including the outermost surface layer formed from a cured film of a composition containing a compound having a chain polymerizable functional group and a charge transportable skeleton in a molecule and a chain transfer agent having a sulfur atom in a molecule, in which the reaction rate of the compound having a chain polymerizable functional group and a charge transportable skeleton in a molecule is about 90% to about 100% and the charge mobility of the cured film at an electric field intensity of 1.0×10 | 04-26-2012 |
| 20120100473 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE FOR IMAGE FORMING APPARATUS - An electrophotographic photoreceptor including an electroconductive substrate, a photosensitive layer, and a cured protection layer, wherein the cured protection layer comprises a cured material of a tri- or more functional radical polymerizable compound and a filler exposed from the surface of the cured protection layer which comprises a bump along the surface of the filler, and wherein the cured protection layer has a thickness (T) larger than a diameter (2r) of the filler therein and the following relationships (a) is satisfied: | 04-26-2012 |
| 20120107735 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member comprises a conductive support, an intermediate layer provided on the conductive support, and a photosensitive layer provided on the intermediate layer, in which at least one of the intermediate layer and the photosensitive layer comprises a compound represented by the following formula (1): | 05-03-2012 |
| 20120115076 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING THE SAME, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A charge generating layer of an electrophotographic photosensitive member contains a charge generating substance, polyvinyl acetal, and a fluorenone derivative. | 05-10-2012 |
| 20120156599 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME - An electrophotographic photoconductor, comprising: | 06-21-2012 |
| 20120156600 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND IMAGE FORMING APPARATUS USING THE SAME - An electrophotographic photoconductor comprising a charge generation layer containing a charge generation material and a charge transfer layer containing a charge transfer material laminating in this order on a conductive support with an undercoat layer interposed between the charge generation layer and the conductive support, or comprising a monolayer type photosensitive layer containing a charge generation material and a charge transport material being formed on a conductive support with an undercoat layer interposed between the monolayer type photosensitive layer and the conductive support, wherein
| 06-21-2012 |
| 20120164567 | MULTILAYER ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND IMAGE- FORMING APPARATUS - A photosensitive layer in a multilayer electrophotographic photoconductor includes a charge-generation layer including a charge-generating material having, as a major component, a titanyl phthalocyanine crystal which satisfies the conditions (A) and (B) below and a base resin, and a charge-transport layer including a charge-transporting material, the charge-generating material having, as a major component, the titanyl phthalocyanine crystal which has absorption at a wavelength of a charge-neutralizing light and which satisfies the conditions (A) and (B) or an X-form metal-free phthalocyanine crystal which has absorption at the wavelength of the charge-neutralizing light, and a binder resin. (A) In a Cu—Kα characteristic X-ray diffraction spectrum, one peak is present at a Bragg angle 2θ±0.2°=27.2°. (B) In a differential scanning calorimetry, one peak is present in a range of 270° C. to 400° C. except for peaks attributed to vaporization of adsorption water. | 06-28-2012 |
| 20120189948 | CHARGE TRANSPORT FILM, ORGANIC ELECTRONIC DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a charge transport film including an enethiol resin having a charge transporting skeleton, and having a sulfur atom content of from 2.0% by mass to 15% by mass. | 07-26-2012 |
| 20120196213 | METHOD FOR PRODUCING PHOTORECEPTOR AND PROCESS CARTRIDGE AND IMAGE-FORMING APPARATUS INCLUDING PHOTORECEPTOR - A method for producing a photoreceptor includes forming at least a photosensitive layer as a coating layer on a surface of a substantially cylindrical photoreceptor; and polishing a surface of the coating layer formed on the photoreceptor in the layer formation by rotating the photoreceptor and moving a polishing member in a direction crossing a circumferential direction of the photoreceptor in contact with the surface of the coating layer on the photoreceptor. | 08-02-2012 |
| 20120196214 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including a substrate and an outermost layer containing a cured film of a composition containing a compound having a chain polymerizable functional group and a charge transporting skeleton in the same molecule, and at least one chain transfer agent selected from a compound having 4 or more primary thiol groups and a compound having 2 or more secondary thiol groups. | 08-02-2012 |
| 20120196215 | THIOL GROUP-CONTAINING CHARGE TRANSPORTING MATERIAL, THIOL GROUP-CONTAINING CHARGE TRANSPORTING MATERIAL-DISSOLVING SOLUTION, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Provided is a thiol group-containing charge transporting material represented by the following general formula (1): | 08-02-2012 |
| 20120202146 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including: a functional layer containing: a polymer of a first compound having a chain polymerizable functional group and a charge transporting skeleton in one molecule, and at least one second compound selected from a compound including at least one kind of the repeating unit represented by formula (AA) and having a weight average molecular weight of 10000 or less, a compound including at least one kind of the repeating unit represented by formula (BB) and having a weight average molecular weight of 10000 or less, a phthalic ester, a trimellitic ester, a fatty acid ester, a polyhydric alcohol ester, and a polyhydric alcohol ether. | 08-09-2012 |
| 20120231379 | FLUORINE-CONTAINING RESIN PARTICLE DISPERSION, METHOD FOR PREPARING FLUORINE-CONTAINING RESIN PARTICLE DISPERSION, COATING LIQUID WHICH CONTAINS FLUORINE-CONTAINING RESIN PARTICLES, METHOD FOR PREPARING COATING FILM WHICH CONTAINS FLUORINE-CONTAINING RESIN PARTICLES, COATING FILM WHICH CONTAINS FLUORINE-CONTAINING RESIN PARTICLES, MOLDED BODY, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR PREPARING ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Provided is a fluorine-containing resin particle dispersion including: fluorine-containing resin particles, a resin which is not dissolved in at least one solvent in a group of hydroxyl group-containing solvents including an alcohol-based solvent having 1 to 10 carbon atoms, containing no aromatic ring in the molecule structure, and a water-based medium, and which is adhered on the surface of the fluorine-containing resin particles, and at least one solvent, in which the resin is not dissolved, in the group of hydroxyl group-containing solvents, in which the fluorine-containing resin particles having the resin adhered on the surface thereof are dispersed. | 09-13-2012 |
| 20120237862 | CHEMICALLY RESISTIVE AND LUBRICATED OVERCOAT - Embodiments provide novel imaging members used in electrostatography. More particularly, there is provided flexible electrophotographic imaging members which exhibit an extended functional life. These imaging members include an improved protective overcoat layer comprising: (1) a polymer blend of a low surface energy copolymer and a chemically resistive copolymer, (2) a chemically resistive copolymer and a slip agent, and (3) a chemically resistive copolymer and the dispersion of a low surface energy Polyhedral Oligomeric Silsesquioxane (POSS) nanoparticles to effect surface contact friction reduction for enhancing wear resistance and for suppressing copy printout defect caused by chemical attack. | 09-20-2012 |
| 20120251932 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Provided is an electrophotographic photoreceptor having a conductive substrate and a photosensitive layer, such that the layer constituting the outermost surface of the photosensitive layer is formed by polymerizing a cross-linkable charge transporting material having a reactive hydroxyl group and a cross-linkable charge transporting material having a reactive alkoxy group, and the ionization potential of the outer surface of the layer constituting the outermost surface is higher by about 0.1 eV or more than the ionization potential of the inner surface of the layer constituting the outermost surface. | 10-04-2012 |
| 20120251933 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoreceptor containing fluororesin particles in which the cross-section obtained by cutting a surface layer along the thickness direction satisfies the following ( | 10-04-2012 |
| 20130017477 | ELECTROSTATIC IMAGING MEMBER AND METHODS FOR USING THE SAMEAANM McGuire; GregoryAACI OakvilleAACO CAAAGP McGuire; Gregory Oakville CAAANM Liu; YuAACI MississaugaAACO CAAAGP Liu; Yu Mississauga CAAANM Klenkler; Richard A.AACI OakvilleAACO CAAAGP Klenkler; Richard A. Oakville CA - Embodiments pertain to a novel imaging member, namely, an electrostatic latent image generating member, and methods for using the same, that can generate an electrostatic latent image through charge acceptance control and without the need for conventional post charging photodischarge, eliminating process steps and avoiding limitations in system speed due to the transit time of charge carriers after light exposure. | 01-17-2013 |
| 20130017478 | IMAGE-FORMING APPARATUS, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND PROCESS CARTRIDGEAANM Oda; YasuhiroAACI KanagawaAACO JPAAGP Oda; Yasuhiro Kanagawa JP - An image-forming apparatus includes an electrophotographic photoreceptor including an outermost layer having a crosslinked structure formed by dehydration condensation of a charge transport monomer containing a hydroxyl group and a developing unit that develops an electrostatic latent image on a surface of the electrophotographic photoreceptor with a developer containing a toner manufactured by dispersing particles for forming the toner in a solvent containing water and aggregating and heating the particles to form a toner image. The apparatus satisfies at least one of the following conditions:
| 01-17-2013 |
| 20130029256 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - The electrophotographic photosensitive member includes a surface layer containing (α), (β) and (γ). | 01-31-2013 |
| 20130052570 | CHARGE-TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A charge-transporting film includes a polymer of a compound represented by Formula (I): | 02-28-2013 |
| 20130052571 | NOVEL COMPOUND, CHARGE TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a compound represented by the following General Formula (I): | 02-28-2013 |
| 20130052572 | COMPOUND, CHARGE TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR USING THE COMPOUND, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a compound represented by the following Formula (I): | 02-28-2013 |
| 20130052573 | NOVEL REACTIVE COMPOUND, CHARGE TRANSPORTING FILM, PHOTOELECTRIC CONVERSION DEVICE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND METHOD OF PRODUCING THE SAME, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a reactive compound represented by the following General Formula (I): | 02-28-2013 |
| 20130052574 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE-FORMING APPARATUS, AND ELECTROPHOTOGRAPHIC CARTRIDGE - The invention can provide an electrophotographic photoreceptor comprising a photosensitive layer containing a specific charge transport material and a specific copolymerized polycarbonate resin, and an image-forming apparatus and an electrophotographic cartridge which use the electrophotographic photoreceptor. | 02-28-2013 |
| 20130052575 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE INCLUDING THE SAME, AND IMAGE FORMING APPARATUS INCLUDING THE SAME - The present invention provides an electrophotographic photoconductor including an intermediate layer having sufficient electron transportability and blocking property and capable of suppressing image defects such as fogging and dots. The electrophotographic photoconductor according to the present invention includes a conductive support, a photosensitive layer disposed on the conductive support, and an intermediate layer disposed between the conductive support and the photosensitive layer, wherein the intermediate layer comprises metal oxide particles and a binder resin. The metal oxide particles are surface-treated with an alkoxysilane oligomer represented by the following Formula (1): | 02-28-2013 |
| 20130059242 | PHOTORECEPTOR, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A photoreceptor including an electroconductive substrate; a photosensitive layer on the electroconductive substrate; and a protection layer on the photosensitive layer, wherein the protection layer includes a radical polymerizable compound having three or more radical polymerizable groups without a charge transportable group, a monofunctional radical polymerizable compound having a specific charge transportable group and a non-radical polymerizable compound having a specific charge transportable group. | 03-07-2013 |
| 20130059243 | PHOTORECEPTOR, COATING LIQUID FOR FORMING OUTERMOST LAYER OF PHOTORECEPTOR, AND IMAGE FORMING METHOD AND APPARATUS, AND PROCESS CARTRIDGE USING THE PHOTORECEPTOR - An electrophotographic photoreceptor including an electroconductive substrate; a photosensitive layer located overlying the electroconductive substrate; and an outermost layer located overlying the photosensitive layer, wherein the outermost layer includes filler and a crosslinked resin having a residual group of a polycarboxylic acid compound and a group having the following formula (1): | 03-07-2013 |
| 20130065169 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoreceptor includes a conductive substrate; and a photosensitive layer on the conductive substrate, wherein a layer having an outermost surface of the photoreceptor contains a polymer that is formed by polymerizing a crosslinkable charge transport material having an aromatic group and a —CH | 03-14-2013 |
| 20130078560 | LOW-WEAR PHOTORECEPTOR SURFACE LAYER - A robust imaging member, such as long life photoreceptor, comprising a structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework. | 03-28-2013 |
| 20130078561 | ROBUST PHOTORECEPTOR SURFACE LAYER - A imaging member, such as a photoreceptor, comprising a structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may comprise at least one secondary component, such as an antioxidant. | 03-28-2013 |
| 20130101929 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an uppermost surface layer thereof is constituted with a cured film of a composition that contains at least two kinds of reactive charge transporting materials selected from a first reactive charge transporting material having an —OH group as a reactive functional group and a second reactive charge transporting material having an —OCH | 04-25-2013 |
| 20130122408 | IMAGE FORMING APPARATUS - An image forming apparatus includes an electrophotographic photoreceptor having a photosensitive layer, and a surface protective layer that contains fluororesin particles and a fluorinated alkyl group-containing copolymer; a charging unit that charges the surface of the electrophotographic photoreceptor; an electrostatic latent image forming unit that forms an electrostatic latent image; a developing unit that accommodates a developer, and develops the electrostatic latent image with the developer to form a toner image; a transfer unit that transfers the toner image to a recording medium; and a cleaning unit that removes the remained developer, wherein when the electrophotographic photoreceptor is rotated 50,000 times by repeating the formation of an image having image sections and non-image sections and having an image density of 7%, and then the surface of the electrophotographic photoreceptor is analyzed by X-ray photoelectron spectroscopy, the zinc coating ratio is in the range of from 50% to 100%. | 05-16-2013 |
| 20130122409 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoconductor including: an electrically conductive substrate; and at least a photoconductive layer on the electrically conductive substrate, wherein the electrophotographic photoconductor includes an uppermost surface layer, and the uppermost surface layer includes an inorganic filler, an acidic disperser and a three-dimensionally crosslinked polymer, wherein the three-dimensionally crosslinked polymer is formed through polymerization among compounds each containing a charge transporting compound and three or more [(tetrahydro- | 05-16-2013 |
| 20130137019 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR UNIT, REPLACEABLE IMAGE-FORMING UNIT, AND IMAGE-FORMING APPARATUS INCLUDING THE SAME - An electrophotographic photoreceptor includes a substantially cylindrical support and a coating disposed on the support and including a photosensitive layer. The coating has lines due to polishing extending in a direction crossing a circumferential direction of a surface of the photoreceptor in at least part of a region outside an effective region available for image formation in an axial direction. | 05-30-2013 |
| 20130137020 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a support and a photosensitive layer. The electrophotographic photosensitive member includes a surface layer that contains a polymer produced by the polymerization of a compound having a chain-polymerizable functional group. The compound having a chain-polymerizable functional group is a compound represented by the following formula (1). | 05-30-2013 |
| 20130137021 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member has a surface layer that contains a polymer produced by the polymerization of a charge transporting substance having two or more methacryloyloxy groups per molecule. The surface layer contains a quinone derivative at a concentration of 5 ppm or more and 1500 ppm or less of the total mass of the polymer. The quinone derivative is a compound represented by the following formula (1) or a compound represented by the following formula (2) or both. | 05-30-2013 |
| 20130137022 | IMAGE BEARING MEMBER AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE SAME - An image bearing member includes a substrate, a photosensitive layer overlying the substrate, and a surface protective layer overlying the photosensitive layer and having a surface comprising multiple concave structures with a maximum diameter of from 1 μm to 3 μm and a maximum depth of from 10 nm to 50 nm. Any one of the concave structures has at least one other concave structure within 3 μm thereof. | 05-30-2013 |
| 20130137023 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - In order to provide an electrophotographic photosensitive member with which a ghost is suppressed even under a low temperature and low humidity environment, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member, the electrophotographic photosensitive member has a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer and comprising a charge generating material and a hole transporting material, wherein the undercoat layer comprises a particular amine compound. | 05-30-2013 |
| 20130137024 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - In an electrophotographic photosensitive member having a surface layer containing a polymer obtainable by polymerization of a compound having a chain-polymerizable functional group, the compound having a chain-polymerizable functional group includes a compound represented by formula (1). | 05-30-2013 |
| 20130137025 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING PHTHALOCYANINE CRYSTAL, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS, AND PHTHALOCYANINE CRYSTAL - Provided is an electrophotographic photosensitive member including a support and a photosensitive layer formed on the support, in which the photosensitive layer includes a phthalocyanine crystal containing a compound satisfying the following formulae (A) and (B) in itself: 8.9≦δP≦10.7 (A) and −3.2≦L≦−1.5 (B) (in the formula (A), δP represents a polar term of Hansen Solubility Parameters, and in the formula (B), L represents an energy level (eV) of an LUMO (lowest unoccupied molecular orbital) obtained as a result of structural optimization calculation based on density functional calculation B3LYP/6-31G). | 05-30-2013 |
| 20130137026 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a support, a charge-generating layer disposed on the support, and a charge-transporting layer disposed on the charge-generating layer, in which the charge-generating layer contains a charge-generating substance and a compound represented by the formula (1). A process cartridge includes the electrophotographic photosensitive member described above. An electrophotographic apparatus includes the electrophotographic photosensitive member described above. | 05-30-2013 |
| 20130157180 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR HAVING EXCELLENT LIFETIME CHARACTERISTICS AND CHARGE UNIFORMITY, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND ELECTROPHOTOGRAPHIC CARTRIDGE USING THE ELECTROPHOTOGRAPHIC PHOTO RECEPTOR - Provided is a laminate type electrophotographic photoreceptor including an electrically conductive substrate, and an undercoat layer, a charge generation layer, and a charge transport layer sequentially disposed on the electrically conductive substrate, in which a characteristic response time of the photoreceptor is about 10 msec or more and about 85 msec or less and a thickness of the charge transport layer is greater than about 18 μm and equal to or less than about 45 μm. Also, an electrophotographic image forming apparatus and an electrophotographic cartridge using the electrophotographic photoreceptor are provided. An electrophotographic photoreceptor according to the present general inventive concept has an improved response time and thus, charge stain characteristics are excellent even when a thick charge transport layer is selected. Therefore, the electrophotographic photoreceptor of the present general inventive concept may have both excellent lifetime characteristics and excellent charge stain characteristics. | 06-20-2013 |
| 20130157181 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE - An electrophotographic photoconductor including: an electroconductive substrate; an intermediate layer; and a photoconductive layer, the intermediate layer and the photoconductive layer being on the electroconductive substrate, wherein the intermediate layer includes an inorganic pigment and a binder resin, wherein a volume ratio of the inorganic pigment in the intermediate layer is 30% by volume to 50% by volume, wherein the inorganic pigment comprises titanium oxide and a content of the titanium oxide in the inorganic pigment is 70% by mass to 90% by mass, wherein the inorganic pigment has a specific surface area of 70 m | 06-20-2013 |
| 20130164662 | IMAGE HOLDING MEMBER FOR IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An image holding member for an image forming apparatus includes a support and a photosensitive layer disposed on the support and containing a compound represented by following formula (I), wherein R | 06-27-2013 |
| 20130164663 | IMAGE HOLDING MEMBER FOR IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an image holding member for an image forming apparatus including a support; and a photosensitive layer disposed on the support and containing a compound represented by the following formula (I): | 06-27-2013 |
| 20130189610 | SHORT WAVELENGTH PHOTOCONDUCTIVE MEMBERS - There is provided a photoconductive member comprising a conductive support and disposed thereon a charge generating layer. The charge generating layer comprises a first polymer binder and a perylene-tetracarbonic acid amide pigment having blue wavelength photosensitivity of the following formula: | 07-25-2013 |
| 20130202994 | AMINE COMPOUND, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - To provide an amine compound, represented by General Formula (I) below: | 08-08-2013 |
| 20130209928 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor, an electrophotographic photoreceptor cartridge, and an image forming apparatus, which are excellent in electrical characteristics such as a responsivity and at the same time, excellent in the crack resistance, are provided. Two kinds of charge transport substances each having a specific structure and a polyester resin having a specific structure are combined, whereby the crack resistance can be improved. | 08-15-2013 |
| 20130209929 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor, an electrophotographic photoreceptor cartridge, and an image forming apparatus, which are excellent in electrical characteristics such as a responsivity and at the same time, excellent in the crack resistance, are provided. Two kinds of charge transport substances each having a specific structure and a polycarbonate resin having a specific structure are combined, whereby the electrical characteristics such as responsivity and the crack resistance can be improved at the same time. | 08-15-2013 |
| 20130230800 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE AND IMAGE FORMING APPARATUS - The invention provides a laminate-type electrophotographic photoreceptor for use in a negative charge system, comprising a conductive support, and a photosensitive layer containing a charge generation layer and a charge transport layer, on the conductive support, wherein in addition to a fluorene compound and a diamine compound which are responsible for charge transport, a compound having a specific structure is used in combination. | 09-05-2013 |
| 20130236820 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus includes at least an electrophotographic photoreceptor having at least a conductive support, an undercoat layer, and a photosensitive layer; a charging device that charges the surface of the electrophotographic photoreceptor in a contact charging mode, in which only DC voltage is applied; an electrostatic latent image forming device that exposes the surface of the charged electrophotographic photoreceptor to form an electrostatic latent image; a developing device that develops the electrostatic latent image by a developer to form a toner image; and a transfer device that directly transfers the toner image from the electrophotographic photoreceptor to a transfer medium; and does not include an erasing device for erasing the surface of the electrophotographic photoreceptor after the toner image is transferred onto the transfer medium by the transfer device and before the surface of the electrophotographic photoreceptor is charged by the charging device. | 09-12-2013 |
| 20130236821 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive support, an undercoat layer that is provided on the conductive support and that has a thickness of from 15 μm to 40 μm and has light transmittance of 20% or less with respect to light having a wavelength of 450 nm when the thickness is at least 15 μm, a charge generation layer that is provided on the undercoat layer, and a charge transport layer that is provided on the charge generation layer and that has a thickness of from 15 μm to 40 μm and has light transmittance of 30% or less with respect to light having a wavelength of 450 nm when the thickness is at least 15 μm. | 09-12-2013 |
| 20130236822 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus includes an electrophotographic photoreceptor, a charging unit charging the electrophotographic photoreceptor, an exposing unit exposing the charged electrophotographic photoreceptor to form an electrostatic latent image, a developing unit developing the electrostatic latent image to form a toner image, and a transferring unit transferring the toner image to a recording medium, but includes no erasing unit erasing the electrophotographic photoreceptor after the toner image is transferred and before the electrographic photoreceptor is charged. The electrophotographic photoreceptor has an undercoat layer and a photosensitive layer on a conductive substrate. The undercoat layer has metallic oxide particles and an electron-accepting compound. The electron-accepting compound is included at 1 part by weight to 5 parts by weight with respect to 100 parts by weight of the metallic oxide particles. A volume resistivity of the undercoat layer is in a range of 1.0×10 | 09-12-2013 |
| 20130236823 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS, AND METHOD OF MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - An electrophotographic photosensitive member comprises a charge-transporting layer which is a surface layer of the electrophotographic photosensitive member; wherein the charge-transporting layer has a matrix-domain structure having: a matrix comprising a component β and a component γ, and a domain comprising a component α. | 09-12-2013 |
| 20130244150 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An electrophotographic photoreceptor, including an electroconductive substrate; a photosensitive layer overlying the electroconductive substrate; and a surface layer overlying the photosensitive layer, wherein the surface layer includes a resin having no charge transportability; and an inorganic particulate material, wherein the inorganic particulate material is a zinc oxide doped with a boron group, and wherein the electrophotographic photoreceptor has a surface specific resistivity (R1) not less than 10 | 09-19-2013 |
| 20130252147 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive support, and an undercoat layer, a charge generation layer, and a charge transport layer that are provided in this order on the conductive support, wherein the undercoat layer includes at least metallic oxide particles, a reactive acceptor substance including an anthraquinone structure expressed by the following Formula 1, and a binder resin, the charge generation layer includes hydroxygallium phthalocyanine as a charge generation material, and a reflectance of incident light having a wavelength of 780 nm on a surface of the charge generation layer when the charge transport layer is removed is 17% or greater: | 09-26-2013 |
| 20130252148 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate, a photosensitive layer that is provided on the conductive substrate, and a surface layer that is provided on the photosensitive layer or is contained in the photosensitive layer, wherein the surface layer is formed of a cured film of a composition including a first reactive charge transport material having a hydroxyl group and a second reactive charge transport material having a methoxy group, and has an elastic deformation ratio R satisfying the following Expression (1): | 09-26-2013 |
| 20130252149 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer which is provided on the conductive substrate and includes a binder resin and metal oxide particles of which the surfaces are treated with at least two kinds of coupling agents of a first coupling agent having an electron-donating group and a second coupling agent having an electron-accepting group; and a photosensitive layer which is provided on the undercoat layer. | 09-26-2013 |
| 20130252150 | ADDITIVE FOR ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an additive for an electrophotographic photoreceptor which is represented by Formula (I): | 09-26-2013 |
| 20130252151 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoreceptor includes a substrate; a photosensitive layer that is provided on the substrate; and a surface layer that is provided on the photosensitive layer, contains fluororesin particles, is a single layer having a thickness of 3 μm or greater, and has a cross-section, taken along a thickness direction thereof, which satisfies specific expressions. | 09-26-2013 |
| 20130252152 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoreceptor includes a substrate and a photosensitive layer, wherein the electrophotographic photoreceptor has a surface layer containing fluorine resin particles, and the fluorine resin particles exposed on a surface satisfy the following Expression (1): | 09-26-2013 |
| 20130252153 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A negative-charge type electrophotographic photoreceptor includes a conductive substrate; an undercoat layer which includes a binder resin and metal oxide particles and in which the work function is from 4.0 eV to 4.7 eV; a charge generation layer in which a difference between the work functions of the charge generation layer and the undercoat layer is from −4 eV to 0 eV; and a charge transport layer which is provided on the charge generation layer. | 09-26-2013 |
| 20130252154 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate, an undercoat layer that is provided on the conductive substrate, a charge generation layer that is provided on the undercoat layer, a charge transport layer that is provided on the charge generation layer, and a protective layer that is provided on the charge transport layer and has volume resistivity of 2×10 | 09-26-2013 |
| 20130260295 | COMPOSITION FOR FORMING CHARGE TRANSPORTING FILM, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a composition for forming a charge transporting film, including a solvent having a dielectric constant of 5.0 or more, at least one kind of compound selected from a group consisting of the following compounds (I-a), (I-b), (I-c), and (I-d) and a compound represented by the following Formula (II), fluorine-containing resin particles, and a fluorine-containing dispersant, | 10-03-2013 |
| 20130280647 | CROSS-LINKED CHARGE TRANSPORT MATERIALS MADE BY LOW ENERGY HYDROGEN BOMBARDMENT - This application discloses a photoreceptor comprising a surface layer that is comprised of an organic composition cured by neutral molecular hydrogen bombardment. Methods for forming a photoreceptor having a cured surface are disclosed. | 10-24-2013 |
| 20130288168 | IMAGING MEMBER AND METHOD OF MAKING AN IMAGING MEMBER - Imaging members having a support, an imaging layer disposed on the support, an outer layer disposed on the imaging layer and fluoropolymer particles imbedded in an outer surface of the outer layer. Image forming apparatuses having such imaging members. Processes for preparing an imaging member for an electrophotographic apparatus, the process involving coating an imaging layer with an outer layer formulation. The imaging layer can be disposed on a support. The outer layer formulation can be dried to form an outer layer disposed on the imaging layer and has an outer surface. Fluoropolymer particles are applied to the outer layer. | 10-31-2013 |
| 20130288169 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate; and a single-layer photosensitive layer that is provided on the conductive substrate and includes a binder resin, at least one kind of charge generation material selected from hydroxygallium phthalocyanine pigments and chlorogallium phthalocyanine pigments, a hole transport material represented by Formula (1), and an electron transport material represented by Formula (2): | 10-31-2013 |
| 20130288170 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate; a single-layer photosensitive layer that is provided on the conductive substrate and includes a binder resin, a charge generation material, a hole transport material, and an electron transport material, wherein a half decay exposure during positive charging is less than or equal to 0.18 μJ/cm | 10-31-2013 |
| 20130295496 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, AND IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE USING THE ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR - An electrophotographic photoconductor including: a conductive substrate; and at least a photoconductive layer on the conductive substrate, wherein an uppermost surface layer of the photoconductive layer includes a three-dimensionally crosslinked film formed through polymerization among compounds each containing a charge transporting compound and three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups where the charge transporting compound has one or more aromatic rings and the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups are bound to the aromatic rings of the charge transporting compound, wherein the polymerization starts after some of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups have been partially cleaved and eliminated, and wherein the three-dimensionally cross-linked film has an ionization potential of 5.4 or higher. | 11-07-2013 |
| 20130295497 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoconductor including: a conductive substrate; and at least a photoconductive layer on the conductive substrate, wherein an uppermost surface layer of the photoconductive layer includes a three-dimensionally crosslinked film formed through polymerization among compounds each containing a charge transporting compound and three or more [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups where the charge transporting compound has one or more aromatic rings and the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups are bound to the aromatic rings of the charge transporting compound, wherein the polymerization starts after some of the [(tetrahydro-2H-pyran-2-yl)oxy]methyl groups have been partially cleaved and eliminated, and wherein the three-dimensionally crosslinked film has a dielectric constant of lower than 3.5. | 11-07-2013 |
| 20130316275 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoreceptor includes a support; an undercoat layer which is provided on the support and contains at least a binder resin, metal oxide particles, and an electron-accepting compound having an anthraquinone structure, in which a content of the electron-accepting compound is from 0.5% by weight to 1.5% by weight with respect to the metal oxide particles and a contact angle of the metal oxide particles with respect to water is from 7° to 12°; and a photosensitive layer which is provided on the undercoat layer. | 11-28-2013 |
| 20130316276 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PRODUCTION METHOD THEREOF, AND ELECTROPHOTOGRAPHIC DEVICE - An electrophotographic photoconductor including, in the order recited: a conductive substrate; an undercoat layer provided on the conductive substrate; and a photoconductive layer provided on the undercoat layer and containing at least a phthalocyanine compound as a charge generation material and, as a resin binder, a polyvinyl acetal resin composed of a repeating unit represented by formula (1): | 11-28-2013 |
| 20130323632 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND METHOD OF MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - Provided are an electrophotographic photosensitive member in which leakage doesn't easily occur, a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member, and a method of manufacturing the electrophotographic photosensitive member. The electrophotographic photosensitive member includes a conductive layer including titanium oxide particle coated with tin oxide doped with a hetero element. When an absolute value of a maximum current amount flowing through the conductive layer in a case of performing a test of applying −1.0 kV including DC voltage to the conductive layer is defined as Ia, and an absolute value of a current amount flowing through the conductive layer in a case where a decrease ratio of a current amount per minute reaches 1% or less for the first time is defined as Ib, the relations of Ia≦6000 and 10≦Ib are satisfied. A volume resistivity of the conductive layer before the test is 1.0×10 | 12-05-2013 |
| 20130344422 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate, an organic photosensitive layer that is provided on the conductive substrate, and an inorganic protective layer that is provided on the organic photosensitive layer, wherein the inorganic protective layer includes a first layer, a second layer, and a third layer in this order from the organic photosensitive layer side and satisfies the relationship of the following expression (1): | 12-26-2013 |
| 20130344423 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS - The invention provides an image forming apparatus and an electrophotographic photoreceptor, comprising: a conductive support; and at least a charge generation layer and a charge transport layer on the conductive support, wherein said charge generation layer contains a hydroxygallium phthalocyanine synthesized using a halogen solvent, said charge transport layer contains a polyester resin having a specific structural unit, and said charge transport layer is formed using a non-halogen solvent. | 12-26-2013 |
| 20140004450 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 01-02-2014 |
| 20140004451 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 01-02-2014 |
| 20140004452 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 01-02-2014 |
| 20140004453 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 01-02-2014 |
| 20140004454 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 01-02-2014 |
| 20140004455 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS, AND IMIDE COMPOUND | 01-02-2014 |
| 20140004456 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 01-02-2014 |
| 20140011127 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member comprises a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer, wherein the undercoat layer has a structure represented by the formula (C1) or the formula (C2). | 01-09-2014 |
| 20140011128 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND RESIN COMPOSITION - An electrophotographic photoreceptor that satisfies excellent transparency, abrasion resistance, and electrophotographic properties (including sensitivity and residual potential after light irradiation) all together is provided. Specifically, an electrophotographic photoreceptor and a resin composition that include therein (1) a polycarbonate resin (A) having a structural unit represented by the following formula (I) and (2) at least one selected from a polycarbonate resin (B) synthesized from a source material that includes therein a bisphenol represented by the following formula (II) and a polyester resin (B′) synthesized from a source material that includes therein a bisphenol represented by the following formula (II). In formulas (I) and (II), each of R | 01-09-2014 |
| 20140017605 | FILM, APPARATUS HAVING FILM, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - There is provided a film having resistance to an increase in the friction coefficient resulting from wearing. The film has a first portion having hardness of 0.01 to 3 GPa and a second portion. The hardness ratio of the second portion to the first portion is of 1.2 to 30. The first portion and the second portion form a first surface portion and a second surface region of the film, respectively. Each of the first portion and the second portion extends to a depth of 75% or more of the thickness of the film. In a 1 mm×1 mm square region disposed on an arbitrary position of the surface of the film, the second surface region accounts for 10% to 80% by area of the square region, and the first surface region and the second surface region account for 50% or more by area of the square region. | 01-16-2014 |
| 20140023959 | IMAGING MEMBER LAYERS - The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrophotographic, including digital printing, apparatuses. More particularly, the embodiments pertain to an improved electrophotographic imaging member comprising an overcoat layer which prevents image quality issues such as deletion. The overcoat layer comprises a phenolic triarylamine charge transport molecule, an aminoplast and a triamino triphenyl compound. | 01-23-2014 |
| 20140023960 | ELECTROPHOTOGRAPHIC MEMBER, METHOD FOR PRODUCING THE SAME, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic member including an electrically conductive substrate and an electrically conductive resin layer corresponding to a surface layer. The resin layer includes electrically conductive particles and a binder resin. The binder resin is a polymer in which a polymer chain having at least one unit selected from the group consisting of units represented by the following formulas (1) and (2) and at least one unit selected from the group consisting of units represented by the following formulas (3) and (4) is crosslinked by at least one organopolysiloxane chain selected from the group consisting of structures represented by the following formulas (5) and (6): | 01-23-2014 |
| 20140023961 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER,PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS AND METHOD OF MANUFACTURING THE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - A charge-transporting layer, which is a surface layer of an electrophotographic photosensitive member, has a matrix-domain structure having a matrix containing constituent β (a polycarbonate resin having a predetermined repeating structural unit) and a charge-transporting substance, and a domain containing constituent α (a polycarbonate resin having a repeating structural unit having a predetermined siloxane moiety). | 01-23-2014 |
| 20140023962 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS AND METHOD OF MANUFACTURING THE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - A charge-transporting layer, which is a surface layer of an electrophotographic photosensitive member, has a matrix-domain structure having a matrix containing constituent β (a polyester resin having a predetermined repeating structural unit) and a charge-transporting substance, and a domain containing constituent α (a polycarbonate resin having a repeating structural unit having a predetermined siloxane moiety). | 01-23-2014 |
| 20140030644 | IMAGE BEARING MEMBER AND IMAGE FORMING APPARATUS - An image bearing member includes a substrate, a photosensitive layer overlying the substrate; and a surface layer overlying the photosensitive layer, wherein the surface layer includes a cross-linked layer formed by curing a radical polymerizable monomer having no charge transport structure and a radical polymerizable compound having a charge transport structure, wherein a protective agent is supplied to the surface layer by a protective agent supplying member which is arranged facing the surface layer and includes a roller having a core material and a foam layer thereon to form a protective layer on the surface layer. | 01-30-2014 |
| 20140045107 | STRUCTURED ORGANIC FILM PHOTORECEPTOR LAYERS CONTAINING FLUORINATED SECONDARY COMPONENTS - An imaging member, such as a photoreceptor, having an outermost layer that is a structured organic film (SOF) comprising a plurality of segments and a plurality of linkers including at least one electroactive segment and an effective amount of fluorinated secondary components. | 02-13-2014 |
| 20140045108 | FLUORINATED STRUCTURED ORGANIC FILM PHOTORECEPTOR LAYERS CONTAINING FLUORINATED SECONDARY COMPONENTS - A imaging member, such as a photoreceptor, having an outermost layer that is a structured organic film (SOF) comprising a plurality of segments and a plurality of linkers including a first fluorinated segment, a second electroactive segment and fluorinated secondary components. | 02-13-2014 |
| 20140045109 | CYLINDRICAL MEMBER, CYLINDRICAL MEMBER FOR IMAGE FORMING APPARATUS, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - A cylindrical member includes aluminum, and has an average area of crystal particles of an outer circumferential surface which is smaller than an average area of crystal particles of an inner circumferential surface. | 02-13-2014 |
| 20140045110 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a cylindrical conductive substrate that is formed of a metal or an alloy and has an average area of crystal grains of 100 μm | 02-13-2014 |
| 20140045111 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a cylindrical conductive substrate that has a thickness of from 0.4 mm to 0.6 mm and a Young's modulus of from 20 GPa to 80 GPa, and a photosensitive layer that is provided on the conductive substrate, wherein an elastic deformation ratio of a layer forming the outermost surface is from 0.35% to 0.47%. | 02-13-2014 |
| 20140045112 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Provided is an electrophotographic photoreceptor including a conductive substrate having a centerline average roughness (Ra) of from 1.0 μm to 1.7 μm and a maximum height (Rmax) of from 3.0 μm to 4.0 μm as a surface roughness; and a photosensitive layer disposed on the conductive substrate, in which the outermost surface layer contains fluorine-containing particles. | 02-13-2014 |
| 20140051018 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention relates to an electrophotographic photosensitive member including a support and a photosensitive layer formed on the support. The electrophotographic photosensitive member has a surface layer containing a polyarylate resin and acicular inorganic fillers. The acicular inorganic fillers are basic and have a number-average aspect ratio of 5 to 50 and a Mohs hardness of 2 to 6. | 02-20-2014 |
| 20140065529 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - An electrophotographic photosensitive member in which a leakage hardly occurs, a process cartridge and electrophotographic apparatus having the electrophotographic photosensitive member, and a method for producing the electrophotographic photosensitive member are provided. The conductive layer in the electrophotographic photosensitive member contains metal oxide particle coated with tin oxide doped with niobium or tantalum. The relations: Ia≦6,000 and 10≦Ib are satisfied. The conductive layer before the test is performed has a volume resistivity of not less than 1.0×10 | 03-06-2014 |
| 20140065530 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A photosensitive layer of an electrophotographic photosensitive member includes a phthalocyanine pigment and a specific dicyanoethylene compound. Alternatively, the photosensitive layer and/or an undercoat layer of the electrophotographic photosensitive member include a specific dicyanoethylene compound, and the photosensitive layer includes the phthalocyanine pigment. | 03-06-2014 |
| 20140065531 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A charge-generating layer of an electrophotographic photosensitive member includes a phthalocyanine pigment and a specific tricyanoethylene compound. Alternatively, the charge-generating layer and/or an undercoat layer of the electrophotographic photosensitive member includes a specific tricyanoethylene compound, and the charge-generating layer includes the phthalocyanine pigment. | 03-06-2014 |
| 20140065532 | CHARGE TRANSPORT SUBSTANCE, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE-FORMING APPARATUS - The present invention is to provide a charge transport substance having high resistance to stress within electrophotographic processes, an electrophotographic photoreceptor which has excellent high-speed responsiveness, shows a sufficient residual potential, and has high resistance to stress within electrophotographic processes, an electrophotographic cartridge, and an image-forming apparatus. The invention provides a charge transport substance having a specific structure. The invention further provides an electrophotographic photoreceptor including a photosensitive layer which contains the charge transport substance having a specific structure, an electrophotographic cartridge, and an image-forming apparatus, equipped with this electrophotographic photoreceptor. | 03-06-2014 |
| 20140072906 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including a conductive substrate; a charge generating layer provided on the conductive substrate; a charge transporting layer provided on the charge generating layer; and an outermost surface layer provided on the charge transporting layer, wherein the charge transporting layer includes a charge transporting material and a polycarbonate copolymer having a solubility parameter as calculated by a Feders method of from 11.40 to 11.75, and the outermost surface layer includes a charge transporting material, fluorine-containing resin particles, and a fluorine-containing dispersant. | 03-13-2014 |
| 20140072907 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an outermost surface layer includes a cured film of a composition containing inorganic particles having polymerizable groups and at least one selected from the reactive compounds represented by the following formulae (I) and (II): | 03-13-2014 |
| 20140093815 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - A charge-transporting layer includes a matrix-domain structure. The domain contains a polyester resin A. The matrix contains a charge-transporting substance and at least one of a polyester resin C and a polycarbonate resin D. | 04-03-2014 |
| 20140093816 | METHOD OF MANUFACTURING POSITIVELY-CHARGED SINGLE-LAYER ELECTROPHOTOGRAPHIC PHOTORECEPTOR, POSITIVELY-CHARGED SINGLE-LAYER ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS - A method of manufacturing a positively-charged single-layer electrophotographic photoreceptor including the steps of: producing a photosensitive layer application liquid containing a good solvent with respect to a binding resin and at least one organic solvent having a boiling point of 70° C. or higher; and forming a photosensitive layer by coating a photosensitive layer support base having a wall thickness of 0.7 mm or less, with the photosensitive layer application liquid and then drying the photosensitive layer application liquid. | 04-03-2014 |
| 20140093817 | POSITIVELY-CHARGED SINGLE-LAYER ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS - Disclosed is a positively-charged single-layer electrophotographic photoreceptor in which a photosensitive layer containing at least a binding resin and a charge transporting material is provided on a photosensitive layer support base with a wall thickness of 0.7 mm or less, wherein when the charge transporting material is solely constituted by a hole transporting material, a content of the hole transporting material is 110 parts by mass or less with respect to 100 parts by mass of the binding resin, and when the charge transporting material is constituted by a hole transporting material and an electron transporting material, a content of the hole transporting material is 130 parts by mass or less and a content of the electron transporting material is 5 parts by mass or more with respect to 100 parts by mass of the binding resin. | 04-03-2014 |
| 20140093818 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a surface layer including a particular charge-transporting substance and a particular polyester resin having a particular repeating structural unit. The content of the particular repeating structural unit is 30% by mass or more based on the total mass of the polyester resin included in the surface layer. | 04-03-2014 |
| 20140106269 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PRODUCTION METHOD FOR ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND PARTICLE HAVING COMPOUND ADSORBED THERETO - Provided is an electrophotographic photosensitive member including a surface layer containing particles which include: silica particles; and a compound-A adsorbed to each of the silica particles, in which the silica particles have a volume average particle diameter of 0.1 μm or more and 4 μm or less, and a specific surface area of 400 m | 04-17-2014 |
| 20140113225 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, INTERMEDIATE TRANSFER MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - There are provided an electrophotographic photosensitive member and an intermediate transfer member each having good lubricity and good cleaning property on its surface, a process cartridge and an electrophotographic apparatus each including the electrophotographic photosensitive member, and an electrophotographic apparatus including the intermediate transfer member. Therefore, a surface layer of the electrophotographic photosensitive member or intermediate transfer member of the present invention contains a matrix component and a rotatably-retained spherical particle that is not bound with the matrix component and is rotatably retained in a pore in the matrix component. | 04-24-2014 |
| 20140120463 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Provided is an electrophotographic photoconductor including an electroconductive substrate, a photoconductive layer on the electroconductive substrate, and a protection layer on the photoconductive layer, wherein the protection layer contains two or more metal oxides having different average primary particle diameters, a binder resin, and a charge transporting material, the content of the metal oxides in the protection layer is 50% by mass or higher, and the average primary particle diameters of the metal oxides satisfy all of formulae (I) to (III) below: | 05-01-2014 |
| 20140120464 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND IMAGE FORMING APPARATUS INCLUDING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - A single-layer-type electrophotographic photosensitive member includes a layer disposed on an electrically conductive substrate, the layer including at least a charge-generating material, an electron transport material, a hole transport material, and a binder resin within the same layer. The charge-generating material contains a phthalocyanine pigment and N-type pigments including at least a perylene-based pigment and an azo-based pigment, and the total amount of the N-type pigments is 0.03 to 10 parts by mass relative to 1 part by mass of the phthalocyanine pigment. | 05-01-2014 |
| 20140127615 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electrophotographic photoreceptor including an electroconductive substrate, an undercoat layer that is provided on the electroconductive substrate, contains a binder resin, metal oxide particles and an electron accepting compound having an acidic group and has an AC impedance of from 1×10 | 05-08-2014 |
| 20140134525 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A surface layer of an electrophotographic photosensitive member contains (α) a particular siloxane-modified resin, (β) a particular compound, and a charge transporting substance. (β) is at least one compound selected from the group consisting of hexanol, heptanol, cyclohexanol, benzyl alcohol, ethylene glycol, 1,4-butanediol, 1,5-pentanediol, diethylene glycol, diethylene glycol ethyl methyl ether, ethylene carbonate, propylene carbonate, nitrobenzene, pyrrolidone, N-methylpyrrolidone, methyl benzoate, ethyl benzoate, benzyl acetate, ethyl 3-ethoxypropionate, acetophenone, methyl salicylate, dimethyl phthalate, and sulfolane. | 05-15-2014 |
| 20140141361 | Surface Control Apparatuses Reducing Print Defects and Methods of Using Same - Surface control apparatuses including an imaging member having a charge retentive surface for developing an electrostatic latent image thereon. The imaging member including a substrate, a photoconductive layer disposed on the substrate, and a surface control (SC) layer disposed on the outer surface of the imaging member. Image forming apparatuses having such surface control apparatuses installed and methods of reducing print defects using such image forming apparatuses. | 05-22-2014 |
| 20140141362 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a support, an undercoat layer formed on the support, and a photosensitive layer which is formed on the undercoat layer and contains a charge generating substance and a hole transporting substance. The undercoat layer contains a specific amine compound, titanium oxide crystal particles having an average primary particle diameter of 3 nm or more and 15 nm or less and an organic resin. | 05-22-2014 |
| 20140141363 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a support and a photosensitive layer formed on the support. A surface layer of the electrophotographic photosensitive member contains a polymerized product of a composition that contains a charge transporting compound having a particular group (chain polymerizable functional group). | 05-22-2014 |
| 20140141364 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a support and a photosensitive layer formed on the support. A surface layer of the electrophotographic photosensitive member contains a polymerized product of a composition that contains a charge transporting compound having a particular group (polymerizable functional group). | 05-22-2014 |
| 20140154617 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - A charge-transporting layer of an electrophotographic photosensitive member has a matrix-domain structure having a domain which comprises at least one resin selected from the group consisting of a resin A1 a resin A2 and a specific silicone oil, and a matrix which comprises resin C and a charge-transporting substance, wherein a content of the structural unit represented by the formula (A-1) and the structural unit represented by the formula (A-2) is from 10% by mass to 40% by mass based on the total mass of the resin A1 and the resin A2. | 06-05-2014 |
| 20140154618 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - A charge-transporting layer of an electrophotographic photosensitive member contains a charge-transporting substance, a resin A having a specific structural unit and a resin C having a specific structural unit as resins, and a compound D having a specific structural unit, and the charge-transporting layer contains domains containing the resin A1, the resin A2 and the compound D in a matrix containing the charge-transporting substance and the resin C. | 06-05-2014 |
| 20140154619 | POSITIVELY CHARGEABLE MONOLAYER ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND IMAGE FORMING APPARATUS - A positively chargeable monolayer electrophotographic photosensitive member includes a photosensitive layer provided on a conductive substrate and having a monolayer structure containing at least a charge generating material, a hole transport material, an electron transport material, and a binder resin. The photosensitive layer contains a hole transport material containing a triarylamine derivative represented by a formula (1) below and an electron transport material containing a compound selected from the group consisting of quinone compounds having a predetermined structure. | 06-05-2014 |
| 20140154620 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer. The undercoat layer is an electron transporting layer and contains a metal salt of organic acid having at least one metal element selected from Fe, Co, Ni, Cu, and Zn. | 06-05-2014 |
| 20140170540 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - The photosensitive layer of an electrophotographic photosensitive member contains (a) a gallium phthalocyanine crystal, (b) a specific amine compound and (c) a specific polyvinylacetal resin. | 06-19-2014 |
| 20140170541 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic photosensitive member including a charge-generating layer that includes: an amine compound represented by the formula (1) and a gallium phthalocyanine crystal, or a gallium phthalocyanine crystal containing the amine compound represented by the formula (1); and an arene compound, in which the arene compound includes at least one compound selected from the group consisting of a compound represented by the formula (2) and a compound represented by the formula (3). | 06-19-2014 |
| 20140170542 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS AND PHTHALOCYANINE CRYSTAL - The photosensitive layer of an electrophotographic photosensitive member contains a phthalocyanine crystal in which a compound represented by the following formula (1) is contained: | 06-19-2014 |
| 20140170543 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS AND PHTHALOCYANINE CRYSTAL - An electrophotographic photosensitive member includes a support and a charge generating layer and a charge transporting layer formed on the support. The charge generating layer contains a specific amine compound. | 06-19-2014 |
| 20140199619 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD FOR MANUFACTURING SAME, AND ELECTROPHOTOGRAPHIC APPARATUS USING SAME - A layered, positively-charged electrophotographic photoreceptor, a method for manufacturing the photoreceptor and an electrophotographic apparatus using the photoreceptor are disclosed. The layered, positively-charged electrophotographic photoreceptor includes a conductive support on which is provided a sequential stack composed of a charge transport layer containing at least a first hole transport material and a first binder resin; and a charge generation layer containing at least a charge generation material, a second hole transport material, an electron transport material, and a second binder resin, wherein the charge generation layer and the charge transport layer have a total amount of residual solvents that is 50 μg/cm | 07-17-2014 |
| 20140205939 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate, and a photosensitive layer provided on the conductive substrate, and an outermost surface layer of the electrophotographic photoreceptor is constituted with a polymerized product or crosslinked product of a composition including at least one selected from reactive compounds represented by the formulae (I) and (II) and a non-reactive charge transporting material, a content of the non-reactive charge transporting material in the composition is from 5% by weight to 40% by weight based on the weight of the outermost surface layer, and a content of the reactive compound before the reaction in the outermost surface layer is 3% by weight or less based on the weight of the outermost surface layer. | 07-24-2014 |
| 20140205940 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - In an electrophotographic photosensitive member including a support, and a photosensitive layer formed on the support, a surface layer of the electrophotographic photosensitive member includes specific resin (α), resin (β) and compound (γ). | 07-24-2014 |
| 20140205941 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - The charge transporting layer as the surface layer of an electrophotographic photosensitive member includes a charge transporting substances represented by any one of formulae (1) to (5), a specific compound, and a specific resin (binder resin). The specific compound is hexanol, heptanol, cyclohexanol, benzyl alcohol, ethylene glycol, 1,4-butanediol, 1,5-pentanediol, diethylene glycol, diethylene glycol ethyl methyl ether, ethylene carbonate, propylene carbonate, nitrobenzene, pyrrolidone, N-methylpyrrolidone, methyl benzoate, ethyl benzoate, benzyl acetate, ethyl 3-ethoxypropionate, acetophenone, methyl salicylate, dimethyl phthalate, or sulfolane. | 07-24-2014 |
| 20140212799 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate; an undercoat layer that is provided on the conductive layer and includes a binder resin, metal oxide particles, and an electron-accepting compound having an acidic group; and a photosensitive layer that is provided on the undercoat layer, wherein when the undercoat layer has a thickness of 20 μm, a transmittance T | 07-31-2014 |
| 20140212800 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member, wherein a charge transporting layer is a surface layer, the charge transporting layer contains a specified charge transportable compound and a specified binder resin, and the charge transporting layer satisfies the following expression (4-1). | 07-31-2014 |
| 20140212801 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A photosensitive layer or a charge generation layer of an electrophotographic photosensitive member contains a gallium phthalocyanine and a particular diamine compound such as 1,2-diaminoethane or 1,3-diaminopropane. The content of the particular diamine compound in the photosensitive layer or the charge generation layer is from 10 ppm to 1,000 ppm (mass ratio) based on the gallium phthalocyanine. | 07-31-2014 |
| 20140212802 | MULTI-LAYERED ELECTROPHOTOGRAPHIC PHOTOSENSITE MEMBER, IMAGE FORMING APPARATUS, AND METHOD FOR PRODUCING MULTI-LAYERED ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - A multi-layered electrophotographic photosensitive member includes a multi-layered photosensitive layer. In the multi-layered photosensitive layer, a charge generating layer that contains a charge generating material and a charge transport layer that contains a charge transport material and a binder resin are layered sequentially. The binder resin includes a polycarbonate resin represented by a formula (1). | 07-31-2014 |
| 20140212803 | POSITIVELY CHARGEABLE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND IMAGE FORMING APPARATUS - A positively chargeable electrophotographic photosensitive member has a photosensitive layer. The photosensitive layer at least includes the following layers layered in the stated order: (I) a charge transport layer at least containing a hole transport material and a binder resin; and (II) a charge generating-and-transporting layer at least containing a charge generating material, an electron transport material, a hole transport material, and a binder resin all within this layer. The binder resin contained in the charge transport layer is different from the binder resin contained in the charge generating-and-transporting layer, and either of the binder resins contains a polyvinyl acetal resin. | 07-31-2014 |
| 20140234763 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus includes an image bearing member having a photosensitive layer and a sub-surface layer having a charge transportability, overlying the photosensitive layer
| 08-21-2014 |
| 20140234764 | ELECTROPHOTOGRAPHIC MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic member for an electrophotographic apparatus, which suppresses the occurrence of a banding image caused by uneven charging. The electrophotographic member includes: an electroconductive substrate; and a surface layer, in which: the surface layer includes a binder resin and an aggregate of at least one crystal particle selected from the group consisting of a flaky crystal particle of magnesium carbonate and a flaky crystal particle of calcium carbonate; an edge face of a card house structure formed of the crystal particle is exposed at a surface of the aggregate; a surface of the surface layer includes a convex portion derived from the aggregate; and a surface of the convex portion has unevenness reflecting a shape of the edge face of the card house structure exposed at the surface of the aggregate. | 08-21-2014 |
| 20140242506 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING THE SAME, AND ELECTROPHOTOGRAPHIC APPARATUS - A surface layer of the electrophotographic photosensitive member has a change region in which a ratio of the number of carbon atoms with respect to the sum of the number of silicon atoms and the number of carbon atoms gradually increases toward a surface side of the electrophotographic photosensitive member from a photoconductive layer side, wherein the change region has an upper charge injection prohibiting portion containing a Group 13 atom, and a surface-side portion which is positioned closer to the surface side of the electrophotographic photosensitive member than the upper charge injection prohibiting portion and does not contain the Group 13 atom, and the distribution of the Group 13 atom in a boundary portion between the surface-side portion and the upper charge injection prohibiting portion is precipitous. | 08-28-2014 |
| 20140242507 | POSITIVELY CHARGEABLE SINGLE-LAYER ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND IMAGE FORMING APPARATUS - A positively chargeable single-layer electrophotographic photosensitive member includes a single-layer photosensitive layer. The single-layer photosensitive layer contains a charge generating material, a hole transport material, an electron transport material, and a binder resin. The electron transport material contains two or more compounds selected from the group consisting of compounds represented by the chemical formulas (1) to (4) below. | 08-28-2014 |
| 20140242508 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME - An electrophotographic photoreceptor includes a cylindrical base and a photosensitive layer disposed on the cylindrical base. The photosensitive layer has a photoconductive layer disposed on the cylindrical base, a charge injection blocking layer disposed on the photoconductive layer, and a surface layer disposed on the charge injection blocking layer. The charge injection blocking layer contains at least one of nitrogen and oxygen, carbon, and a group 13 element. A content of the at least one of nitrogen and oxygen contained in the charge injection blocking layer is lower on a side of the surface layer than on a side of the photosensitive layer. | 08-28-2014 |
| 20140255834 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes an electroconductive substrate, a photosensitive layer provided on the electroconductive substrate, and an outermost surface layer, wherein the outermost surface layer is a layer constituted with a cured product of a composition including at least one of non-charge transporting compounds represented by formulae (I) and (II), and at least one non-reactive charge transporting material: | 09-11-2014 |
| 20140255835 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes an electroconductive substrate; a photosensitive layer that is provided on the electroconductive substrate; and an outermost surface layer, wherein the outermost surface layer is a layer made of a cured product of a composition that contains position isomer mixture of at least one kind among non-charge transporting compounds represented by Formulae (I) and (II) and at least one kind among non-reactive charge transporting materials. | 09-11-2014 |
| 20140255836 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, AND ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE EACH INCLUDING THE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - A surface layer of an electrophotographic photosensitive member contains a polymerized product obtained by a polymerization reaction of a hole transporting compound having a first reactive functional group and a compound having a second reactive functional group reactable with the first reactive functional group, and a structure other than the first reactive functional group of the hole transporting compound is a structure having only a carbon atom and a hydrogen atom, or a structure having only a carbon atom, a hydrogen atom and an oxygen atom. | 09-11-2014 |
| 20140255837 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, AND ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE EACH INCLUDING THE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER - Provided is an electrophotographic photosensitive member excellent in suppression of image deletion and electric potential variation. The surface layer of the electrophotographic photosensitive member comprises a hole transporting substance. The hole transporting substance is one of a compound consisting of a carbon atom and a hydrogen atom, or a compound consisting of a carbon atom, a hydrogen atom, and an oxygen atom. The hole transporting substance comprises a conjugate structure containing 24 or more sp | 09-11-2014 |
| 20140255838 | PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - A process cartridge that can suppress production of a banding image attributed to contact rotation of an electrophotographic photosensitive member and a charging member and output a high-quality image is provided. The charging member includes an electro-conductive substrate and an electroconductive resin layer, the resin layer contains a binder, a conductive fine particle, and a bowl-shaped resin particle having an opening, and the surface of the charging member has a concavity derived from the opening of the bowl-shaped resin particle and a protrusion derived from the edge of the opening thereof. The electrophotographic photosensitive member includes a support and a photosensitive layer, and the surface layer in the photosensitive member contains a specific resin (α), a specific resin (β), and a specific compound (γ). | 09-11-2014 |
| 20140287351 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS - Disclosed are an electrophotographic photoreceptor which has high durability and high potential characteristics and can suppress the occurrence of stick-slip and turning up of a blade and the abrasion of the blade even when the blade is used as a cleaning unit. The surface layer contains barium sulfate composite fine particles, in which a conductive metal oxide is adhered to the surface of a core material made from barium sulfate, in a cured resin. The 10 point average roughness RzJIS of the surface layer is not less than 0.2 μm and not more than 1.5 μm, and a value obtained by an equation n×d, wherein n represents the peak count of the surface layer and d represents the number average primary particle diameter of the barium sulfate composite fine particles, is not less than 10,000 (pieces•nm) and not more than 200,000 (pieces•nm). | 09-25-2014 |
| 20140295333 | IMAGE FORMING SYSTEM - The presently disclosed embodiments relate generally to image forming systems comprising imaging apparatus members and toner compositions. More specifically, the present embodiments relate to specific toner compositions for use with electrophotographic imaging members comprising an overcoat layer protecting the imaging member surface and a contact type charging device, such as a “bias charge roll” (BCR). The toner compositions comprise a combination of additives that provide an image forming system that does not suffer from the commonly observed deletion and imaging member wear issues. | 10-02-2014 |
| 20140295334 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate; an organic photosensitive layer that is provided on the conductive substrate; and an inorganic protective layer that is provided on the organic photosensitive layer so as to be in contact with a surface of the organic photosensitive layer, wherein the organic photosensitive layer includes at least a charge transport material and silica particles in a region on the surface side in contact with the inorganic protective layer. | 10-02-2014 |
| 20140295335 | AZOQUINONE COMPOUND, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, AND IMAGE FORMING APPARATUS - The present disclosure relates to an azoquinone compound represented by formula (1) below. | 10-02-2014 |
| 20140295336 | ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - Uneven charging is improved, and production of a banding image attributed to a slip between the charging member and the electrophotographic photosensitive member is suppressed. An electrophotographic process cartridge including a charging member and an electrophotographic photosensitive member which is electrically charged upon being brought into contact with the charging member, wherein the charging member includes a electro-conductive substrate and a surface layer formed on the electro-conductive substrate; the surface layer contains at least a binder resin, an electron conductive agent, and a resin particle having a plurality of pores inside thereof; the surface of the surface layer has a protrusion derived from the resin particle; the electrophotographic photosensitive member includes a support and a photosensitive layer formed on the support; and the surface layer of the electrophotographic photosensitive member contains a specific component. | 10-02-2014 |
| 20140302431 | ELECTRO-PHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME - Provided is a photoreceptor having an appropriate surface frictional force that enables a cleaning angle, at which the slipping between the surface of the photoreceptor surface and the blade is prevented and the overturning and vibrating of the blade are prevented, to be easily obtained. | 10-09-2014 |
| 20140308606 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS, AND GALLIUM PHTHALOCYANINE CRYSTAL - Provided is an electrophotographic photosensitive member, a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member that can output an image having less image defects due to a ghost phenomenon not only under a normal-temperature, normal-humidity environment but also under a low-temperature, low-humidity environment as a particularly severe condition. The electrophotographic photosensitive member includes a support and a photosensitive layer formed on the support, in which the photosensitive layer includes a gallium phthalocyanine crystal containing a specific amine compound in itself. | 10-16-2014 |
| 20140322636 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS, AND IMIDE COMPOUND - An electrophotographic photosensitive member includes a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer, in which the undercoat layer contains a polymerized product of a compound represented by the formula (1) or a polymerized product of a composition containing a compound represented by the formula (1). | 10-30-2014 |
| 20140322637 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - In an electrophotographic photosensitive member including a charge-generating layer, the charge-generating layer has a matrix-domain structure; in the matrix-domain structure, the domain contains a charge-generating substance, and the matrix contains a binder resin and a fluoranthene compound. | 10-30-2014 |
| 20140342276 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING THE SAME, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes an undercoat layer containing a silane coupling agent having a divalent group represented by —NH— and an urethane resin. The modulus of elastic deformation (we/wt) of a surface of the undercoat layer satisfies formula (X), where the modulus of elastic deformation is measured by a universal hardness test. | 11-20-2014 |
| 20140349226 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic photosensitive member that improves the sensitivity characteristic and high-humidity deletion resistance, and achieves compatibility between a high image-resolving power and the suppression of an image memory. The electrophotographic photosensitive member comprises an electrophotographic photosensitive member, including: a photoconductive layer; and a surface layer comprising hydrogenated amorphous silicon carbide on the photoconductive layer, in which: a ratio (C/(Si+C)) of a number of carbon atoms (C) to a sum of a number of silicon atoms (Si) and the number of the carbon atoms (C) in the surface layer is 0.50 or more and 0.65 or less; a sum of an atom density of the silicon atoms and an atom density of the carbon atoms in the surface layer is 6.60×10 | 11-27-2014 |
| 20140349227 | ORGANIC PHOTOCONDUCTORS HAVING PROTECTIVE COATINGS WITH NANOPARTICLES - An organic photoconductor includes: a conductive substrate; a charge generation layer formed on the conductive substrate; a charge transport layer formed on the charge generation layer; and a protective coating formed on the charge transport layer. The protective coating comprises nanoparticles incorporated in an in-situ cross-linked polymer matrix. A process for increasing mechanical strength in an organic photoconductor is also provided. | 11-27-2014 |
| 20140377694 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An electrophotographic photoreceptor includes a conductive support and a photosensitive layer and a surface protection layer that are sequentially laminated on the conductive support. The surface protection layer contains a binder resin and inorganic fine particles surface-treated with a hole transporting compound of the following General Formula 1. | 12-25-2014 |
| 20150017577 | IMAGING MEMBERS HAVING A CROSS-LINKED ANTICURL BACK COATING - The disclosure provides a flexible electrophotographic imaging member having an optically clear, cross-linked anticurl back coating of melamine formaldehyde to effect complete and absolute imaging member flatness. In particular embodiments, the anticurl back coating further includes an organic or inorganic particle dispersion. | 01-15-2015 |
| 20150017578 | FLEXIBLE IMAGING MEMBERS HAVING EXTERNALLY PLASTICIZED IMAGING LAYER(S) - The presently disclosed embodiments relate in general to flexible electrophotographic imaging members, such as layered photoreceptor structural simplification, and material reformulation for making and using the same. More particularly, the embodiments pertain to the incorporation of a plasticizer or mixture of plasticizers into the charge transport layer for rendering flatness such that an anticurl back coating is no longer needed to counteract and control the layered photoreceptor curling. | 01-15-2015 |
| 20150017579 | IMAGING MEMBERS HAVING A CROSS-LINKED ANTICURL BACK COATING - The disclosure provides a flexible electrophotographic imaging member having an optically clear, cross-linked anticurl back coating of melamine formaldehyde to effect complete and absolute imaging member flatness. | 01-15-2015 |
| 20150017580 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS INCLUDING THE SAME - An electrophotographic photoreceptor having a photosensitive layer formed on a conductive substrate, wherein the photosensitive layer contains oxygen-containing fluorinated fine particles in a surface layer thereof, and the oxygen-containing fluorinated fine particles have an oxygen composition ratio of 0.9 to 3.0% by atom based on the whole composition of the fine particles according to an X-ray fluorescence composition analysis. | 01-15-2015 |
| 20150024310 | POLYMER FOR CHARGE GENERATION LAYER AND CHARGE TRANSPORT LAYER FORMULATION - The disclosure provides a flexible electrophotographic imaging member comprising a single novel polymer binder in the formulation of the imaging layers. In particular, the present embodiments provide multi-layered electrophotographic imaging members prepared by using the same polymer binder in the two contiguous imaging formation layers to improve mechanical and photoelectrical performance. The embodiments also include a process for making and using the imaging member. | 01-22-2015 |
| 20150037715 | PHOTOCONDUCTOR CONTAINING A CHARGE TRANSPORT LAYER HAVING AN ARYLAMINE HOLE TRANSPORT MATERIAL - Disclosed herein is a photoconductor including a substrate, a photogenerating layer and a charge transport layer. The charge transport layer includes a hole transport molecule of N4,N4′-bis(4-((E)-4,4-diphenylbuta-1,3-dien-1-yl)phenyl)-N4,N4′-di-p-tolyl-[1,1′-biphenyl]-4,4′-diamine and a binder. The weight percent of the charge transport layer includes N4,N4′-bis(4-((E)-4,4-diphenylbuta-1,3-dien-1-yl)phenyl)-N4,N4′-di-p-tolyl-[1,1′-biphenyl]-4,4′-diamine at from about 50 to about 70. | 02-05-2015 |
| 20150050587 | IMAGING MEMBERS HAVING ELECTRICALLY AND MECHANICALLY TUNED IMAGING LAYERS - An electrophotographic imaging member which has improved imaging layer(s) formulated to comprise a charge transport compound and a polymer blended binder to render photoelectrical stability, tune-ability, and surface contact friction reduction for providing service life extension. The polymer blended binder used in the imaging layer(s) is a binary polymer blend consisting of: (1) an A-B diblock copolymer and a bisphenol polycarbonate and (2) an A-B diblock copolymer and a bisphenol polycarbonate plus a slippery nano POSS particle dispersion in its material matrix. | 02-19-2015 |
| 20150050588 | IMAGING MEMBERS HAVING ELECTRICALLY AND MECHANICALLY TUNED IMAGING LAYERS - An electrophotographic imaging member which has improved imaging layer(s) formulated to comprise a charge transport compound and a polymer blended binder to render photoelectrical stability, tune-ability, and surface contact friction reduction for providing service life extension. The polymer blended binder used in the imaging layer(s) is a binary polymer blend binder consisting of: (1) an A-B diblock copolymer and a bisphenol polycarbonate and a low surface energy polysiloxane/polycarbonate random copolymer and (2) an A-B diblock copolymer and a low surface energy graft polysiloxane/polycarbonate copolymer. | 02-19-2015 |
| 20150050589 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE FORMING APPARATUS - The present invention relates to an electrophotographic photoreceptor comprising a conductive support and at least a photosensitive layer provided thereon, wherein the electrophotographic photoreceptor comprises an outermost layer which contains a specific charge transport substance and a specific compound. | 02-19-2015 |
| 20150056546 | PHOTOELECTRICAL STABLE IMAGING MEMBERS - The presently disclosed embodiments are directed to flexible imaging members used in electrophotographic imaging apparatuses. More particularly, the embodiments pertain to electrophotographic imaging members which have imaging layer(s) formulated to comprise of a novel polymer blended binder comprising a bisphenol type polycarbonate and an organic acid-containing copolyester doped into the polycarbonate which provides improved properties and performance to the resulting imaging member. The formulated imaging layer(s) may further include a plasticizer. | 02-26-2015 |
| 20150079509 | PHOTOCONDUCTOR - A photoconductor, which contains an electrically conductive support, and at least a photoconductive layer provided over the electrically conductive support, wherein the photoconductive layer contains a compound represented by the following general formula (1): | 03-19-2015 |
| 20150086914 | IMAGING MEMBERS AND METHODS FOR MAKING THE SAME - Flexible imaging members in electrophotography which have an improved plasticized charge transport layer formulation. The resulting imaging member is resistant to chemical contaminants, photoelectrically stable, fatigue cracking suppression, and has a simplified material structure which is curl-free without the need of an anticurl back coating layer. Process for making and using the member are also disclosed. | 03-26-2015 |
| 20150093693 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member, including a support, a charge generating layer on the support, and a charge transporting layer on the charge generating layer, wherein the charge generating layer includes a gallium phthalocyanine crystal, a nitrogen-containing heterocyclic compound having a nitrogen atom having a substituent, and a compound represented by Formula (1) or (2). | 04-02-2015 |
| 20150093694 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member, comprising a support, a charge generating layer on the support and a charge transporting layer on the charge generating layer, wherein the charge generating layer comprises a gallium phthalocyanine crystal, a nitrogen-containing heterocyclic compound and a compound represented by Formula (1), wherein a nitrogen atom in a heterocyclic ring of the nitrogen-containing heterocyclic compound has a substituent. | 04-02-2015 |
| 20150093695 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member includes a laminated body including a conductive support, a first intermediate layer on the conductive support, and a second intermediate layer on the first intermediate layer, the first intermediate layer containing a binder resin and a metal oxide particle whose surface have been treated with an organic compound, and the second intermediate layer containing a cured product having electron transportability, in which the laminated body satisfies the following expression (1): | 04-02-2015 |
| 20150099217 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, MANUFACTURING METHOD OF ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE-FORMING APPARATUS AND IMAGE-FORMING METHOD - Disclosed is an electrophotographic photoreceptor including a conductive support, a photosensitive layer on the conductive support and a surface layer on the photosensitive layer. The surface layer includes a cured resin prepared by polymerization of a compound having two or more radically polymerizable functional groups per molecule, the cured resin containing an organic resin fine particle and a metal oxide fine particle, and the organic resin fine particle comprising a resin containing a structural unit derived from at least one of melamine and benzoguanamine, the organic resin fine particle having a number average primary particle size of 0.01 to 3.00 μm. | 04-09-2015 |
| 20150104738 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING THE SAME, ELECTROPHOTOGRAPHIC APPARATUS, AND PROCESS CARTRIDGE - A surface layer of an electrophotographic photosensitive member contains a cured product of a composition containing a hole transporting substance having an acryloyloxy group and/or a methacryloyloxy group and a siloxane-modified acrylic compound. | 04-16-2015 |
| 20150111136 | IMAGING MEMBER HAVING IMPROVED IMAGING LAYERS - The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member having imaging layers that exhibit improved electrical performance. In these embodiments, both the charge generation layer and charge transport layer comprise a tetra-aryl polycarbonate copolymer. | 04-23-2015 |
| 20150111137 | CROSS-LINKED OVERCOAT LAYER - Embodiments pertain to a novel imaging member, namely, an imaging member or photoreceptor comprising an overcoat layer which comprises a soluble filler that improves low surface energy and wear. The soluble filler is a silicone poly(ethylene glycol) ester which improves low surface energy and wear without negatively impacting electrical properties of the overcoat layer. | 04-23-2015 |
| 20150132689 | CHARGE TRANSPORT LAYER COMPRISING SILICONE ESTER COMPOUNDS - The presently disclosed embodiments are directed generally to an electrostatographic imaging member having low surface energy and is wear resistant. The imaging members include a charge transport layer that comprises a silicone ester additive that provides these beneficial properties. | 05-14-2015 |
| 20150301460 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS EMPLOYING SAME - There is provided an electrophotographic photoreceptor whose surface layer does not easily become thin in use of the electrophotographic photoreceptor, so that occurrence of image defects such as image non-uniformity can be avoided. An electrophotographic photoreceptor includes a cylindrical substrate; a photosensitive layer formed on the cylindrical substrate, the photosensitive layer including at least a photoconductive layer; and a surface layer formed on the photosensitive layer. The surface layer contains amorphous carbon, and has a ratio of an integrated intensity of D band to an integrated intensity of G band in a Raman spectrum of the surface layer being 0.86 or higher and 1.23 or lower. There is realized an electrophotographic photoreceptor whose surface layer does not easily become thin in use of the electrophotographic photoreceptor, so that occurrence of image defects such as image non-uniformity can be prevented. | 10-22-2015 |
| 20150301461 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS AND PHTHALOCYANINE CRYSTAL - The photosensitive layer of an electrophotographic photosensitive member contains a phthalocyanine crystal in which a compound represented by the following formula (1) is contained: | 10-22-2015 |
| 20150309427 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND HYDROXYGALLIUM PHTHALOCYANINE CRYSTAL - An electrophotographic photosensitive member includes a support and a photosensitive layer on the support, and the photosensitive layer contains a hydroxygallium phthalocyanine crystal having peaks at Bragg angles 2θ±0.2° of 6.9°, 7.7°, 16.4°, 24.4°, and 26.5° in CuKα X-ray diffraction. | 10-29-2015 |
| 20150309428 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, PHTHALOCYANINE CRYSTAL, AND METHOD FOR PRODUCING PHTHALOCYANINE CRYSTAL - An electrophotographic photosensitive member includes a support and a photosensitive layer formed on the support. The photosensitive layer contains a phthalocyanine crystal in which a particular amide compound is contained. | 10-29-2015 |
| 20150309430 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An electrophotographic photoconductor including a support, an undercoat layer overlying the support, and a photosensitive layer overlying the undercoat layer is provided. The undercoat layer includes zinc oxide particles and a binder resin. The undercoat layer has a voltage (V)-current (I) characteristics such that, when S1 is a value obtained by integrating current (I[A]) in terms of voltage (V[V]) from 0 to a distribution voltage V | 10-29-2015 |
| 20150316862 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND MANUFACTURING METHOD THEREFOR, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS INCLUDING THE ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, AND PHTHALOCYANINE CRYSTAL AND METHOD PRODUCING THEREFOR - Provided is an electrophotographic photosensitive member, including a photosensitive layer that includes a phthalocyanine crystal in which a compound represented by the following formula (1) is contained: | 11-05-2015 |
| 20150316864 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER AND MANUFACTURING METHOD THEREOF, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND PHTHALOCYANINE CRYSTAL AND MANUFACTURING METHOD THEREOF - An electrophotographic photosensitive member capable of outputting an image with suppressed positive ghosting, and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member are provided. The electrophotographic photosensitive member has a photosensitive layer including a phthalocyanine crystal in which the compound represented by the formula (1) is contained, wherein the content of the compound represented by the formula (1) is 0.1% by mass or more and 1.7% by mass or less based on the phthalocyanine crystal. | 11-05-2015 |
| 20150316865 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention relates to an electrophotographic photosensitive member including an undercoat layer containing metal oxide particles, a binder resin, and an organic acid metal salt having at least one metal element selected from the group consisting of bismuth, zinc, cobalt, iron, nickel, and copper. | 11-05-2015 |
| 20150346613 | PHOTOCONDUCTOR, IMAGE FORMING METHOD USING THE SAME, METHOD OF MANUFACTURING THE PHOTOCONDUCTOR, AND IMAGE FORMING APPARATUS - A photoconductor includes an electroconductive substrate; and a photosensitive layer provided overlying the electroconductive substrate, wherein, in a curve obtained by: (I) measuring a convexoconcave form, (II) conducting multi-resolution analysis (MRA-1), (III). making a single dimensional data arrangement, (IV) conducting further wavelet conversion, (V) connecting logarithms, a surface of the photosensitive layer has a WRa (LML) of from 0.02 μm to 0.03 μm, a WRa (LHL) of from 0.006 μm to 0.01 μm, and a WRa (HLH) of 0.001 μm or less, wherein the arithmetical mean roughness (WRa) are defined as Ra in JIS-B0601:2001 and WRa (HHH) to WRa (LLL) represent individual Ra's in the following bandwidths: | 12-03-2015 |
| 20150346614 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PRODUCTION METHOD THEREOF, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photoconductor includes a conductive support; a charge generation layer provided on the conductive support; and a charge transport layer containing a charge transport material, a binder resin, and a highly branched polymer having a long-chain alkyl group or an alicyclic group, provided on the charge generation layer as an outermost layer. The electrophotographic photoconductor has excellent contamination resistance against sebum or the like, stable electrical characteristics even upon repeated use, as well as superior transfer resistance and gas resistance. A method for producing the electrophotographic photoconductor is disclosed, as well as an electrophotographic apparatus including the electrophotographic photoconductor. | 12-03-2015 |
| 20150346615 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE FORMING APPARATUS PROVIDED WITH THE SAME - The present invention provides an electrophotographic photoreceptor comprising a multilayered photosensitive layer or a monolayer photosensitive layer, | 12-03-2015 |
| 20150346617 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, MANUFACTURING METHOD OF ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND PHTHALOCYANINE CRYSTAL AND MANUFACTURING METHOD OF PHTHALOCYANINE CRYSTAL - The present invention provides: an electrophotographic photosensitive member which reduces image defects due to ghosting not only under a normal temperature and normal humidity environment but also even under a low temperature and low humidity environment; and a novel phthalocyanine crystal. The electrophotographic photosensitive member of the present invention includes a photosensitive layer which comprises a phthalocyanine crystal in which a dimethyl sulfoxide is contained. The content of the dimethyl sulfoxide is 0.1% by mass or more and 1.7% by mass or less based on the phthalocyanine crystal. | 12-03-2015 |
| 20150346618 | COATING AGENT, CONDUCTIVE RESIN FILM, ELECTROPHOTOGRAPHIC MEMBER, AND METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC MEMBER - Provided is a coating agent having a polymerizable compound containing a hydroxyl group in the molecule, conductive inorganic particles whose surface is treated with a dispersing agent having a nitrogen atom in the molecule, and a solvent, in which when the interatomic distance between an oxygen atom of the hydroxyl group and the atom farthest away from the oxygen atom in the molecule of the polymerizable compound is represented by D1 and the interatomic distance between the nitrogen atom and the atom farthest away from the nitrogen atom in the molecule of the dispersing agent is represented by D2, D1 and D2 satisfy the relationship represented by the following formula (1). | 12-03-2015 |
| 20150346619 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PRODUCTION METHOD THEREOF, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photoconductor includes a conductive support; and a photoconductive layer that contains at least a charge generation material, a hole transport material, an electron transport material and a binder resin, and that is provided on the conductive support, wherein the photoconductive layer has an outermost layer that contains a charge generation material, a hole transport material, an electron transport material, a binder resin and a highly branched polymer that is obtained by polymerizing, in the presence of a polymerization initiator, a monomer having, in a molecule, two or more radically polymerizable double bonds and a monomer having, in a molecule, a long-chain alkyl group or an alicyclic group and at least one radically polymerizable double bond. The electrophotographic photoconductor exhibits superior operational stability and stably high image quality, without problems with image memory, a contact member, or image defects due to cracks caused by contamination by oils/fats or sebum. | 12-03-2015 |
| 20150355561 | ELECTRO-CONDUCTIVE BELT AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electro-conductive belt including an electro-conductive resin layer. The electro-conductive resin layer includes a matrix containing a thermoplastic resin having at least one bond selected from the group consisting of an amide bond, an ester bond and a carbonate bond, a domain containing an ionic liquid containing a hexafluorophosphate anion or an anion expressed by formula (1), and particles containing a silicone resin having a structure expressed by formula (2): R | 12-10-2015 |
| 20150362847 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention can provide an electrophotographic photosensitive member that is capable of suppressing potential variation as much as possible to allow a high-quality image to be output, as well as a process cartridge and an electrophotographic apparatus including the electrophotographic photosensitive member. Therefore, the electrophotographic photosensitive member of the present invention is an electrophotographic photosensitive member comprising: a support; a charge-generating layer; and a charge-transporting layer on the charge-generating layer, in which the charge-generating layer comprises a gallium phthalocyanine crystal in which a polar solvent is contained, and the polar solvent is at least one selected from dimethylsulfoxide, N,N-dimethylformamide, N-methylformamide, N-propylformamide, N-vinylformamide and N-methylpyrrolidone relative to gallium phthalocyanine, and the content of the polar solvent is 0.1% by mass or more and 2.0% by mass or less based on a gallium phthalocyanine in the gallium phthalocyanine crystal, and the charge-transporting layer contains a compound represented by formula (1). | 12-17-2015 |
| 20150362848 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member can provide images in which black spots and fogging are suppressed and density unevenness due to coating unevenness of the charge generation layer is suppressed. The charge generation layer of the electrophotographic photosensitive member contains a gallium phthalocyanine crystal, a nitrogen-containing heterocyclic compound, and an amide compound represented by a formula (1), and a nitrogen atom in a heterocyclic ring of the nitrogen-containing heterocyclic compound has a substituent. | 12-17-2015 |
| 20150362849 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING THE SAME, ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE, AND CHLOROGALLIUM PHTHALOCYANINE CRYSTAL - A photosensitive layer of an electrophotographic photosensitive member contains a particular chlorogallium phthalocyanine crystal in which an organic compound is contained. The organic compound has a Hansen solubility parameter δtotal of 24.0 or more and 35.0 or less, a polar energy δP of 13.5 or more and 21.0 or less, and a dispersion energy δD of 15.0 or more and 19.5 or less. | 12-17-2015 |
| 20150362850 | HYDROXYGALLIUM PHTHALOCYANINE CRYSTAL, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention provides a novel hydroxygallium phthalocyanine crystal and an electrophotographic photosensitive member capable of outputting an image with few failures due to a ghost phenomenon not only in normal-temperature, normal-humidity environments but also even in low-temperature, low-humidity environments. The hydroxygallium phthalocyanine crystal has peaks at Bragg angles 2θ±0.2° of 7.5°, 9.9°, 25.2°, and 28.3° as determined by X-ray diffraction with Cu Kα radiation. The intensity of the peak at a Bragg angle 2θ±0.2° of 9.9° is higher than the intensity of the peak at a Bragg angle 2θ±0.2° of 7.5°. | 12-17-2015 |
| 20150370181 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, MANUFACTURING METHOD OF ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND A SOLID SOLUTION AND MANUFACTURING METHOD OF A SOLID SOLUTION - The present invention provides an electrophotographic photosensitive member which can output images with reduced image defects due to ghosting not only under a normal temperature and normal humidity environment but also even under a low temperature and low humidity environment as especially severe conditions, and a manufacturing method thereof; and a process cartridge and an electrophotographic apparatus each having the electrophotographic photosensitive member. Accordingly, the electrophotographic photosensitive member of the present invention having a support and a photosensitive layer on the support includes the photosensitive layer which contains a solid solution of hydroxygallium phthalocyanine and a compound represented by the following Formula (1) or Formula (1)′, the solid solution having peaks at Bragg angles 2θ of 7.4°±0.3° and 28.3°±0.3° in CuKα characteristic X-ray diffraction. | 12-24-2015 |
| 20160011527 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 01-14-2016 |
| 20160011529 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS, AND CONDENSED POLYCYCLIC AROMATIC COMPOUND | 01-14-2016 |
| 20160011530 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTGRAPHIC APPARATUS, AND METHOD FOR PRODUCING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER | 01-14-2016 |
| 20160062253 | TRIARYLAMINE DERIVATIVE, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMEBER, AND IMAGE FORMING APPARATUS - A triarylamine derivative is represented by general formula (I). In general formula (I), R | 03-03-2016 |
| 20160062254 | TRIPHENYLAMINE DERIVATIVE, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, AND IMAGE FORMING APPARATUS - A triphenylamine derivative is represented by general formula (1). In general formula (1), R | 03-03-2016 |
| 20160070183 | COATED PHOTOCONDUCTIVE SUBSTRATE - The present disclosure is drawn to apparatuses and methods that include a coated photoconductive substrate. The coated photoconductive substrate can include a photo-conductive substrate with a charge generation layer and a charge transport layer, and can also have a coating adhered to the photoconductive substrate. The coating can comprise a polymer and can be devoid of charge transport materials. | 03-10-2016 |
| 20160070184 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic photosensitive member, including: a support; and a photosensitive layer formed on the support, in which a surface layer of the electrophotographic photosensitive member contains a polymerized product of a compound represented by the following structural formula (1). | 03-10-2016 |
| 20160077452 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING THE SAME, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention provides an electrophotographic photosensitive member which includes an undercoat layer, and the undercoat layer contains metal oxide particles and a compound represented by the formula (1). | 03-17-2016 |
| 20160085163 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer provided on the conductive substrate, wherein an outermost surface layer of the electrophotographic photoreceptor is a cured film of a composition containing a reactive charge transporting material and silica particles having a hydrophobization-treated surface. | 03-24-2016 |
| 20160085164 | ELECTRON TRANSPORT MATERIAL, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is an electron transport material represented by formula (1): | 03-24-2016 |
| 20160091804 | IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An image forming method satisfies the following Expressions: | 03-31-2016 |
| 20160091807 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS AND PHTHALOCYANINE CRYSTAL - The present invention provides an electrophotographic photosensitive member comprising a support, and a photosensitive layer formed on the support, wherein the photosensitive layer contains a phthalocyanine crystal in which a 4-piperidone compound represented by the following formula (1) is contained. | 03-31-2016 |
| 20160116852 | COATED PHOTOCONDUCTIVE SUBSTRATE - The present disclosure is drawn to apparatuses and methods that include a coated photoconductive substrate. The coated photoconductive substrate can include a photoconductive substrate with a charge generation layer and a charge transport layer, and can also have a coating adhered to the photoconductive substrate. The coating can have a thickness ranging from 1 nm to 200 nm. | 04-28-2016 |
| 20160116853 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic photosensitive member including a laminated body, the laminated body including a support, an undercoat layer, and a charge generating layer, the undercoat layer including a polymerized product of a composition including an electron transport material represented by the following formula (1), a cross-linking agent, and a thermoplastic resin having a polymerizable functional group, the laminated body satisfying the following expressions (2) and (3). | 04-28-2016 |
| 20160124328 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member wherein a charge generating layer of the electrophotographic photosensitive member includes a gallium phthalocyanine crystal in which an organic compound is contained, wherein the organic compound is at least one compound selected from the group consisting of dimethylsulfoxide, N,N-dimethylformamide, N-methylformamide, N-propylformamide, N-vinylformamide and N-methylpyrrolidone, the content of the organic compound is 0.1% by mass or more and 2.0% by mass or less based on a gallium phthalocyanine in the gallium phthalocyanine crystal, and a charge transporting layer of the electrophotographic photosensitive member includes a polycarbonate resin having structural units represented by formulae (1) and (2). | 05-05-2016 |
| 20160124329 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS, AND CHLOROGALLIUM PHTHALOCYANINE CRYSTAL AND METHOD FOR PRODUCING THE SAME - An electrophotographic photosensitive member includes a support and a photosensitive layer in this order. The photosensitive layer contains a chlorogallium phthalocyanine crystal represented by formula (1) in which at least one organic compound selected from N,N-dimethylformamide and dimethyl sulfoxide is contained. The content of the organic compound contained in the chlorogallium phthalocyanine crystal represented by the formula (1) is 0.10 mass % or more and 0.80 mass % or less based on a content of the chlorogallium phthalocyanine crystal represented by the formula (1). | 05-05-2016 |
| 20160124330 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING THE SAME, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention provides an electrophotographic photosensitive member which includes a support, an undercoat layer formed on the support, a photosensitive layer formed on the undercoat layer, and the undercoat layer contains metal oxide particles and a compound represented by the formula (1). | 05-05-2016 |
| 20160131985 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic photosensitive member, including in the following order: a support; a charge-generating layer; and a charge-transporting layer, in which: the charge-generating layer includes a gallium phthalocyanine crystal in which an organic compound is contained; the organic compound is at least one compound selected from the group consisting of dimethyl sulfoxide, N,N-dimethylformamide, N-methylformamide, N-propylformamide, N-vinylformamide, and N-methylpyrrolidone; a content of the organic compound is 0.1% by mass or more and 1.5% by mass or less with respect to a mass of gallium phthalocyanine in the gallium phthalocyanine crystal; and the charge-transporting layer comprises at least one compound selected from the group consisting of a compound represented by the formula (1), a compound represented by the formula (2), a compound represented by the formula (3), and a compound represented by the formula (4). | 05-12-2016 |
| 20160139517 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - A electrophotographic photoconductor is provided. The electrophotographic photoconductor includes a conductive support, an undercoat layer overlying the conductive support, and a photosensitive layer overlying the undercoat layer. The undercoat layer includes a metal oxide particle, binder resin, and a compound having a urea group. | 05-19-2016 |
| 20160187793 | ORGANIC PHOTOCONDUCTOR AND ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE INCLUDING THE ORGANIC PHOTO CONDUCTOR - An organic photoconductor including an electrically conductive substrate, a photosensitive layer disposed on the electrically conductive substrate, and a protection layer disposed on the photosensitive layer, wherein the protection layer includes a polymer composition and a plurality of electrically conductive metal oxide particles, and wherein the polymer composition is a product of a curing reaction with a multifunctional spherical dendrimer, a first multifunctional acryl compound having a urethane bond, and a second multifunctional acryl compound having a silicon-containing group and a fluorine-containing group. | 06-30-2016 |
| 20160187794 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic photosensitive member that abuts with a charging member and/or a developer carrying member with an abutting member interposed therebetween, wherein the electrophotographic photosensitive member has a first portion and a second portion abutting with the abutting member along the longitudinal direction thereof, the electrophotographic photosensitive member has a support, a charge generation layer containing a charge generating material and a polyacetal resin, and a surface layer in this order, the electrophotographic photosensitive member has, in the first portion, an undercoat layer containing a polymerized product of a composition including an electron transporting material and a cross-linking agent, the layer being adjacent to a surface of the charge generation layer, facing the support, and the electrophotographic photosensitive member has, in the second portion, an intermediate layer containing a metal oxide particle and a phenol resin, the layer being between and adjacent to the support and the charge generation layer. | 06-30-2016 |
| 20160252829 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 09-01-2016 |
| 20160252830 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD FOR MANUFACTURING ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 09-01-2016 |
| 20160252832 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS, AND MIXED CRYSTAL OF HYDROXYGALLIUM PHTHALOCYANINE AND CHLOROGALLIUM PHTHALOCYANINE AND METHOD OF PRODUCING THE CRYSTALLINE COMPLEX | 09-01-2016 |
| 20160252833 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 09-01-2016 |
| 20160252834 | ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS | 09-01-2016 |
| 20160377998 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic photosensitive member including a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer, in which the undercoat layer contains a polymer of a composition containing a compound represented by the formula (1). | 12-29-2016 |
| 20160377999 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS - The present invention provides an electrophotographic photosensitive member that allows positive ghost to be reduced even in repeated use. The electrophotographic photosensitive member of the present invention is an electrophotographic photosensitive member wherein an undercoat layer contains a polymerization product of a composition including a compound represented by the following formula (1). | 12-29-2016 |
| 20160378000 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided is an electrophotographic photosensitive member comprising a support, an intermediate layer formed on the support, a charge generating layer formed directly on the intermediate layer, and a charge transporting layer formed on the charge generating layer, in which the intermediate layer contains a compound represented by the formula (1). | 12-29-2016 |
| 20160378001 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - Provided are an electrophotographic photosensitive member comprising: a support, an undercoat layer formed on the support, and a photosensitive layer formed on the undercoat layer, on which the undercoat layer contains one of a compound represented by the formula (1) and a polymer of a composition containing the compound represented by the formula (1). | 12-29-2016 |
| 20160378002 | ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - An undercoat layer of an electrophotographic photosensitive member includes a binder resin, and a complex particle composed of a core particle coated with tin oxide doped with zinc. | 12-29-2016 |
| 20170235240 | ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE FORMING APPARATUS | 08-17-2017 |
