Entries |
Document | Title | Date |
20080226366 | IMAGE FORMING APPARATUS - An image forming apparatus of the present invention includes a guide member | 09-18-2008 |
20080232874 | Cleaning blade edge stiffener to improve blade tucking robustness - This is a cleaning blade useful in an electrophotographic marking system. Under certain conditions, cleaning blades will tuck when the blade continuously contacts a photoconductive surface of this marking system. This tucking causes abrading and damage to the moving photoconductive surface. To prevent or minimize tucking, a blade stiffener is used in this invention in either an add-on or as a part of the originally-manufactured elastomeric blade. | 09-25-2008 |
20080240811 | CLEANING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME - A cleaning apparatus include a cleaning member to remove a waste toner remaining in a photoconductive medium and a housing to support the cleaning member, including a waste toner admission portion to provide a transfer path of the waste toner removed by the cleaning member, and a waste toner collecting portion to store the waste toner. The housing has a first thickness corresponding to the waste toner admission portion and a second thickness corresponding to the waste toner collecting portion so that the first thickness is smaller than the second thickness. | 10-02-2008 |
20080247791 | DEVELOPER LEVEL CONTROL BLADE AND PROCESS FOR MANUFACTURING DEVELOPER LEVEL CONTROL - A developer level control blade is provided which can form a developer layer on a developer carrying member in a proper thickness and in a uniform state and can keep the developer, in particular, color toner particles from melt-adhering to the charge control face so that faulty images such as lines and non-uniformity can be kept from occurring. Also provided is a process for manufacturing this developer level control blade. The process for manufacturing the developer level control blade is characterized by having the steps of extruding a blade member material melted to liquefy, covering therewith a support member thin-plate metal member at an edge portion thereof to join the both together, and cooling the blade member material to solidify, followed by cutting in a preset length. | 10-09-2008 |
20080260440 | CLEANING BLADE - A cleaning blade is provided which does not cause contamination of other parts even when being stored for a long period of time in a high temperature and high humidity environment. The cleaning blade is set in an image forming apparatus employing an electrostatic transfer process, including a blade member and a support member to rub and remove residual toner remaining on a photosensitive drum provided to the image forming apparatus, in which the total amount of nitrogen-containing compounds extracted with methanol from the cleaning blade is 12 μg or less per cm of the cleaning blade in its longitudinal direction. | 10-23-2008 |
20080286020 | CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A blade, including: a cut surface provided by obliquely cutting a part of a tip surface to set an angle forming a tip ridge portion of the blade as an obtuse angle, wherein the tip ridge portion is configured to be pressed to a surface to be cleaned. | 11-20-2008 |
20080310896 | CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A cleaning device capable of reducing the apparatus and prolonging the service life of the cleaning blade is disclosed. The cleaning device includes a cleaning blade including an elastic blade, a pressing member disposed near the downstream side of the image carrier with respect to the elastic blade, and a driving mechanism for driving the pressing member so as to be in contact with and press the elastic blade. The driving mechanism operates so as to press the elastic blade in the upstream direction to separate the elastic blade from the surface of the image carrier for a while. Then, the driving mechanism operates to move the pressing member to be separated from the elastic blade so that the elastic blade is in contact with the surface of the image carrier. | 12-18-2008 |
20080310897 | CLEANING DEVICE, IMAGE FORMING APPARATUS INCLUDING THE DEVICE, AND PROCESS CARTRIDGE INCLUDING THE DEVICE - A cleaning device includes a cleaning member, a collection member, an electrical field generator, and a separation member. The cleaning member has a surface capable of moving while contacting a surface of a cleaning target to remove toner on the surface of the cleaning target. The collection member has a surface capable of moving while contacting the surface of the cleaning member to collect the toner on the surface of the cleaning member. The electrical field generator generates an electrical field to move the toner from the cleaning member to the collection member. The separation member contacts the surface of the collection member to separate the toner on the surface of the collection member. The collection member has a centerline average surface roughness of not more than 0.1 μm and shows a surface hardness rank of B or higher in a steel-wool scratch test. | 12-18-2008 |
20080317529 | Waste toner collecting device and image forming apparatus incorporating the same - A waste toner collecting device includes: a tubular member provided with a toner inlet and a toner outlet; a roller that is provided upstream of the toner outlet in a toner transport direction inside the tubular member, that has a substantially horizontal rotation axis line, and that is elliptical in vertical section; a scraper that is provided on an inner wall of the tubular member on a downstream side of the toner outlet in a rotation direction of the roller, an edge of the scraper being in contact with the roller; and a waste toner collecting bag that is inflatable and is attached to the toner outlet of the tubular member. | 12-25-2008 |
20090003905 | CLEANING BLADE MEMBER - A cleaning blade member includes a cleaning layer and an elastic layer provided on the cleaning layer's back surface. Both are formed of a polyurethane member produced through curing and molding a castable polyurethane composition, the cleaning layer containing a long-chain polyol, a polyisocyanate, and a diamino compound having a melting point ≦80° C., the elastic layer containing a long-chain polyol, a polyisocyanate, a short-chain diol, and a short-chain triol, and has a percent edge drooping ≦7.0%, the cleaning and elastic layers have Young's modulus contribution factors R | 01-01-2009 |
20090022529 | Vibration method to reduce and/or eliminate friction/noise - A small vibrator is connected to a cleaning blade or cleaning blade holder in an electrostatic marking system. This vibrator in a cycle out step moves the blade up and down and reduces thereby overall contact with the photoconductor surface; this reduces any noise caused by blade contact with the photoconductor surface during cycling out or down of the marking procedure. | 01-22-2009 |
20090022530 | BLADE FOR ELECTROPHOTOGRAPHIC APPARATUS, AND METHOD OF PRODUCING THE SAME - A blade for an electrophotographic apparatus is provided which is prevented from turning up, achieves wear resistance, and has excellent cleaning properties. The blade is composed of a support member and a blade member formed of a thermosetting polyurethane elastomer, which are joined together. The blade member has a structure in which a nitrogen concentration continuously increases from the inside of a contact part coming into contact with a counterpart member toward the surface of the contact part. | 01-22-2009 |
20090035037 | DOCTOR BLADE CHAMBER FOR HIGH VISCOUS INK - A doctor blade chamber for transferring high viscous ink to at least one anilox roller. The doctor blade chamber has two doctor blades, at least one partitioning wall and a hollow casing which together with the anilox roller define an ink chamber. Each of the doctor blades has an edge positioned against the anilox roller. The doctor blade chamber requires a minimum of skilled personnel for maintaining and adjusting the unit during operation and when changing the anilox roller. The doctor blade chamber is independent of the rotation velocity of the anilox roller and during operation the ink is transferred to the anilox roller without applying pressure in the ink chamber. | 02-05-2009 |
20090041518 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A process cartridge is detachably mountable to an image forming apparatus. The process cartridge includes an image bearing member, a developing member for developing an electrostatic latent image formed on a surface of the image bearing member and a cleaning member having a blade contacted to the image bearing member along a longitudinal direction of the image bearing member to remove the developer from the surface of the image bearing member. The cleaning member has a processed portion containing an isocyanate compound at each of longitudinal end portions of the blade, wherein a longitudinally inside end of the processed portion is disposed longitudinally inside a developer carryable region of the developing member which is capable of carrying the developer. | 02-12-2009 |
20090041519 | ELECTROPHOTOGRAPHIC CLEANING BLADE, PROCESS FOR PRODUCING ELECTROPHOTOGRAPHIC CLEANING BLADE, AND ELECTROPHOTOGRAPHIC APPARATUS - An electrophotographic cleaning blade is provided which is free of blade turning-up coming from both end portions of the blade in its lengthwise direction. The cleaning blade having a blade formed of a polyurethane resin, which is to come into touch with the surface of a photosensitive drum of an electrophotographic apparatus to remove a toner remaining thereon, and a support member which holds the blade. The blade has a polyurethane resin portion having a dynamic hardness of 0.05 mN/μm | 02-12-2009 |
20090060601 | Cleaning device, process cartridge, and image forming apparatus - A cleaning device includes a blade member, a holder, a vibration detection device, a heating device, and a control device. The blade member comes into contact with an image carrying member, and cleans off toner remaining on the image carrying member. The holder holds the blade member. The vibration detection device detects the vibration level of either one of the blade member and the holder. The heating device heats either one of the blade member and the holder. The control device controls the heating device to heat either one of the blade member and the holder when the vibration level detected by the vibration detection device exceeds a predetermined threshold value. | 03-05-2009 |
20090060602 | Image forming apparatus including image processing member determined by method of evaluating distribution of adhesion forces of toner thereto - An image processing member that is included in an image forming apparatus employing method of evaluating and determining adhesion forces thereof, includes an optical writing unit configured to optically write an image, and an image processing member configured to process the image formed by the optical writing unit. The image processing member has good cleaning performance, which is determined by a method of determining a distribution of adhesion forces generated between a surface of the image processing member and a particle of a powder used to reproduce the image in the image forming apparatus in which the adhesion forces are measured at multiple points on the surface of the image processing member. | 03-05-2009 |
20090097893 | CLEANING DEVICE AND IMAGE FORMING APPARATUS - A cleaning device includes a cleaning blade that contacts an image carrier and cleans residual toner remaining on the image carrier; a toner pool forming member that is disposed on an upstream side of the cleaning blade in a rotational direction of the image carrier, collects the residual toner that has been cleaned, and forms a toner pool that contacts the cleaning blade and the image carrier; and a toner amount adjusting component that makes the pressure of the residual toner that acts on the image carrier substantially uniform across an axis-of-rotation direction of the image carrier by adjusting the amount of the residual toner in the toner pool in the axis-of-rotation direction of the image carrier. | 04-16-2009 |
20090123205 | CLEANING DEVICE, METHOD OF MANUFACTURING THE CLEANING DEVICE, AND PROCESS UNIT AND IMAGE FORMING APPARATUS USING SAME - A cleaning device including a cleaning blade configured to clean a surface of a cleaning target that is moving. A leading edge which is formed between lower and leading surfaces of the cleaning blade is obtuse-angled with respect to the lower surface and is in contact with the surface of the cleaning target during use. The leading surface of the cleaning blade is curved outward when the cleaning blade is not in contact with the cleaning target. | 05-14-2009 |
20090154971 | IMAGE FORMING METHOD - An image forming method using a cleaning blade which prevents the spherical toner to pass through a gap between the blade and a photosensitive member and which has durability so as to be less worn away or chipped, wherein it is possible to maintain cleaning performance over a long term even in high-speed printing using spherical toner, and a non-transferred toner and external additives dropping out from colored particles less causes filming on the photosensitive member and less gives damage to the surface of the photosensitive member, is provided. | 06-18-2009 |
20090190975 | DUAL BLADE CLEANING SYSTEM - A cleaning system for cleaning a moving surface of an image forming device, such as a photoreceptor. The cleaning system includes first and second links each having three pivot connections for pivotally connecting first and second cleaning blades together in mutually exclusive cooperative movement alternating between a common Cleaning Position at a first location and respective Suspended Positions. The cleaning system can include a Doctor Blade arrangement in which the cleaning blades are disposed in a Doctor Blade orientation in the Cleaning Position. The cleaning system can include a Wiper Blade arrangement in which the cleaning blades are disposed in a Wiper Blade orientation in the Cleaning Position. The first and second cleaning blades form similar Blade Holder Angles, Blade Deflection Angles and Working Angles when occupying the Cleaning Position. | 07-30-2009 |
20090245904 | IMAGING FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus including: a rotatable image-carrier; a charging unit that contacts and charges a surface of the image-carrier; an exposing unit that exposes the surface and forms a latent-image; a developing unit that develops the latent-image with a developer; a transfer unit that transfers a developed-toner-image onto a transfer-receiving member; a cleaning unit that is provided with a plate shaped cleaning member having a free end that faces upwards a corner portion of the free end contacting the surface, the cleaning member cleaning off developer remaining on the surface after transfer, and a developer pooling member provided between the cleaning member and the transfer unit, that temporarily pools the cleaned off developer at the free end; and a friction-coefficient reducing unit that reduces a friction-coefficient at the surface, and that reduces the friction-coefficient during non-image forming period to less than that during image forming period is provided. | 10-01-2009 |
20090252544 | CLEANING APPARATUS, IMAGE FORMING APPARATUS INCLUDING THE SAME, AND PROCESS CARTRIDGE INCLUDING THE SAME - A cleaning apparatus includes a blade to remove one or more toner particles remaining on a photosensitive body of an electrophotographic type image forming apparatus. The toner particles have a mean particle diameter D and a standard deviation σ of a particle size distribution. The blade is arranged on the photosensitive body to satisfy a following condition. | 10-08-2009 |
20090257797 | Cleaning Unit, Image Forming Apparatus Using the Same, and Cleaner - A cleaning unit includes a cleaner. The cleaner includes: a support member; a toner scraping member; and a toner storing mechanism. The toner storing mechanism includes: a toner catching member provided in a vicinity of a leading end of the toner scraping member so as to catch the toner scraped off; and a swingably supporting mechanism which supports swingably the toner catching member with a middle portion of the toner catching member as a swing fulcrum. A free end portion of the toner catching member protruding from the toner scraping member in the moving direction is a storage moving portion which moves based on an amount of the stored toner, and a portion opposite to the free end portion with respect to the swing fulcrum is a press portion which presses the toner scraping member toward the cleaned member based on a moving amount of the storage moving portion. | 10-15-2009 |
20090290921 | CLEANING BLADE FOR ELECTROPHOTOGRAPHIC APPARATUS - There is provided a cleaning blade for an electrophotographic apparatus having good cleaning performance both immediately after long-time shutdown under low temperature environment and during continuous use under low temperature environment even when spherical toner having a small diameter is used. A cleaning blade for an electrophotographic apparatus having an elastic blade member which is brought into contact with an image bearing member and frictionally slid to remove remaining toner, wherein the elastic blade member satisfies (1) to (4): (1) the stress-relaxation rate represented by the formula (a) at 10° C. is 25% or less; | 11-26-2009 |
20090297239 | CLEANING APPARATUS AND IMAGE FORMING APPARATUS - Disclosed a cleaning apparatus including: a brush to remove an adhered matter adhered to a photoconductor drum; wherein the brush includes: a first brush portion which contacts an end portion of the photoconductor drum in an axial direction, which portions is on a circumferential surface of the photoconductor drum, and in which portion a conductive base substance is exposed; and a second brush portion which contacts only a photosensitive layer on the circumferential surface of the photoconductor drum, and an electric resistance value of the first brush portion is larger than that of the second brush when a bias current is applied. | 12-03-2009 |
20090311017 | CLEANING BLADE AND IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING METHOD USING THE SAME - A cleaning blade for removing fine particles from a cleaning target by contact with the cleaning target is provided. The cleaning blade includes an elastic blade A leading edge of the elastic blade includes a friction coefficient of 0.5 or less. The cleaning blade also includes a surface layer that covers the leading edge of the elastic blade. A thickness of the surface layer is between 1 to 50 μm at a position 50 μm away from the leading edge, and a hardness of the surface layer is greater hardness than the elastic blade. | 12-17-2009 |
20100008706 | CLEANING DEVICE AND IMAGE FORMING APPARATUS - A cleaning device used for removing toner particles remaining on an image bearing member, including a plurality of brush rollers capable of coming into contact with the image bearing member, the brush rollers being disposed around the image bearing member in a row in a direction in which the image bearing member is moved, wherein one of the brush rollers includes brush fibers each containing a conductive agent dispersed homogeneously therein or only in its surface layer, wherein another brush roller includes oblique brush fibers, looped brush fibers, or both of them, each brush fiber containing the conductive agent localized in a center portion thereof without being dispersed in its surface layer, and wherein the oblique brush fibers are obliquely provided in the another brush roller so that tip portions thereof are curled on the image bearing member in a direction in which the image bearing member is moved. | 01-14-2010 |
20100008707 | BLADE FOR ELECTROPHOTOGRAPHIC DEVICE AND METHOD FOR MANUFACTURING THE BLADE - An object of the present invention is to provide a blade for an electro-photographic device formed by two layers, which undergoes minimal permanent deformation and offers excellent mechanical strength, wear resistance and compliance to the use environment. | 01-14-2010 |
20100054830 | BLADE ENGAGEMENT APPARATUS FOR IMAGE FORMING MACHINES - A blade engagement apparatus moving blades into working positions in engagement with an image forming device moving surface for cleaning and/or metering release agent onto the surface. The blade engagement apparatus includes a pair of spaced apart links having slots receiving pins extending from the blades and an actuator rotating the links for moving the blades along track slots into and out of the working positions. The links couple the blades together for mutually exclusive cooperative movement alternating between the working positions and respective suspended positions wherein the blades are removed from the moving surface. | 03-04-2010 |
20100061780 | CLEANING APPARATUS - A cleaning apparatus for cleaning toner on an image bearing member includes a cleaning blade for collecting the toner by contacting an edge portion thereof with the image bearing member, a container for storing the toner, a first rotation axis for rotatably supporting the cleaning blade, an urging member for urging the cleaning blade, a positioning portion for positioning the cleaning blade so that the cleaning blade urged by the urging member stands by at a predetermined position when the cleaning blade is not in contact with the image bearing member, and a second rotation axis for rotatably supporting the cleaning apparatus while contacting a part of a main body when the cleaning apparatus is mounted on the main body, wherein the edge portion is positioned on a straight line or away from the image bearing member with respect to the straight line connecting rotation centers of the first rotation axis and of the second rotation axis when the cleaning blade is located at the predetermined position. | 03-11-2010 |
20100074664 | CLEANING MEMBER, CARTRIDGE, AND IMAGE FORMING APPARATUS - A cleaning member including a member body that is brought into contact with a surface of a member to be cleaned; and a sensor that is fixed to a portion of the member body except a portion in contact with the member to be cleaned and is made of a metallic film. | 03-25-2010 |
20100080636 | COATED-CORE CLEANER BLADES - A coated-core cleaner blade has a core comprising a first material and a coating surrounding the core. The coating comprises a second material that is different than the first material. Further, the core (first material) is rigid compared to the coating (second material). Therefore, the first material has a first flexibility that is much less than a second flexibility of the second material. | 04-01-2010 |
20100092222 | Image Formation Apparatus and Image Formation Method - An image formation apparatus includes: a developer retaining member that retains a liquid developer that contains toner particles and carrier liquid; a roller member that can be brought into contact with the developer retaining member at a position and distanced from the developer retaining member at another position; a cleaning blade that has a contact edge that is in contact with the roller member for cleaning the roller member; and a supporting member that supports the cleaning blade, wherein the cleaning blade has a first plane that is supported by the supporting member or is opposite to a surface that is supported by the supporting member and further has a second plane, the first plane and the second plane forming the contact edge, and an angle θ | 04-15-2010 |
20100111581 | Apparatus and Method of Reducing Charge Roller Contamination - The present invention relates generally to image forming equipment, e.g., a laser printer of the type which includes a photoconductive (PC) drum and an associated charge roller. The invention is disclosed in exemplary embodiment as a laser printer incorporating a cleaner element with an electrical potential to sufficiently charge contamination particles on the PC drum to electrically repel from a charged surface, such as the charge roller. | 05-06-2010 |
20100150628 | CLEANING BLADE FOR ELECTROPHOTOGRAPHIC DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a cleaning blade for an electrophotographic device, which, even when spherical (perfectly spherical or irregularly shaped), polymerized toner with a small particle diameter is used, can achieve sufficient abrasion resistance and sufficient cleaning ability (particularly cleaning ability under low-temperature and low-humidity conditions). | 06-17-2010 |
20100166472 | Cleaning blade and image forming apparatus - A cleaning blade is disposed in an abutting relation with an image bearing body and configured to remove residual developer material from the image bearing body. The cleaning blade has a tan δ peak temperature equal to or higher than 8.6° C. and lower than 45° C., and any one of a Young's modulus equal to or higher than 13 Mpa and lower than 140 Mpa, a tensile strength equal to or higher than 37.3 Mpa and lower than 76 Mpa, a hardness equal to or higher than 83° and lower than 97°, and a tearing strength equal to or higher than 59 kgf/cm and lower than 118 kgf/cm. | 07-01-2010 |
20100189481 | PRINTING APPARATUS - A printing apparatus comprises a conveyance belt configured to convey a printing medium while attracting the printing medium to a conveyance surface thereof using an electrostatic force, a printhead configured to discharge a printing material onto the printing medium conveyed by the conveyance belt, a blade configured to scrape the printing material adhering on the conveyance belt; a support unit configured to bring the blade into press contact with the conveyance belt, and a recovery unit configured to recover the printing material which is scraped by the blade and free-falls, wherein a pressure applied from the blade to the conveyance belt decreases from one end to the other end in an orthogonal direction perpendicular to a conveyance direction of the printing medium on the conveyance surface of the conveyance belt. | 07-29-2010 |
20100202813 | IMAGE FORMING MECHANISM AND IMAGE FORMING DEVICE - There is provided an image forming mechanism including: an image carrier containing a lubricant in a photosensitive layer that is formed on a surface of the image carrier, and on which an electrostatic latent image is formed; a developing section developing the electrostatic latent image into a visible image by a developer that contains the lubricant; and a cleaning member formed with a first layer that contacts the photosensitive layer, and a second layer that is formed of a material having a lower modulus of repulsion elasticity than the first layer and that is layered with the first layer and that does not contact the surface of the image carrier. | 08-12-2010 |
20100221049 | CLEANSING APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME - A cleansing apparatus includes a blade, a gathering tank and a residual material transportation module for cleansing a photoconductor drum. The blade contacts the photoconductor drum, and scrapes off residual materials adhered to a surface of the photoconductor drum. The gathering tank gathers the residual materials. The residual material transportation module includes a transportation component, a cleansing component, and a path, for cleansing the photoconductor drum and transporting the residual materials to the gathering tank. The transportation component is disposed at an upstream position towards the blade on a rotating direction of the photoconductor drum. The cleansing component is disposed on the transportation component and in contact with the photoconductor drum, for cleansing the photoconductor drum. The path is formed by the transportation component and the cleansing component. The residual material transportation module transports residual materials of the photoconductor drum to the gathering tank through the path. | 09-02-2010 |
20100247188 | CLEANING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME - A cleaning device includes a cleaning blade that contacts a surface of a member to be cleaned to remove a residue remaining on the surface of the member to be cleaned, and that includes multiple layers, wherein a leading end portion of the cleaning blade shifts in a separating direction from the surface of the member to be cleaned due to a difference in thermal expansion property among the multiple layers when temperature rises. | 09-30-2010 |
20100247189 | CLEANING DEVICE AND IMAGE FORMING APPARATUS USING THE SAME - A cleaning device includes a cleaning blade member that has a tip abutting a surface of an image carrier so as to remove a residue remaining on the surface of the image carrier; an attaching member that includes a first attachment piece to which a base end of the cleaning blade member is attached, and a second attachment piece which is provided so as to intersect the first attachment piece at a predetermined angle; a housing member to which one of the first attachment piece and the second attachment piece is fixed at both ends along a longitudinal direction thereof; and an external force exerting member that exerts an external force in a direction which intersects a surface of the other one of the first attachment piece and the second attachment piece, which is not fixed to the housing member. | 09-30-2010 |
20100247190 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image holder; a charging unit that charges the image holder; a latent image forming unit; a developing unit that forms a toner image; a transfer unit that transfers the toner image formed on the surface of the image holder onto a recording medium; a toner-particle removal unit that removes toner particles remaining on the surface of the image holder after the transfer of the toner image by the transfer unit; and an external-additive removal unit that includes a conductive blade disposed to contact the surface of the image holder and removes, after the transfer of the toner image by the transfer unit, external additive remaining on the surface of the image holder using the conductive blade while applying a voltage to the surface of the image holder via the conductive blade. | 09-30-2010 |
20100254739 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND PROCESS CARTRIDGE INVOLVING THE USE OF A CLEANING BLADE THAT REMOVES TONER REMAINING ON A SURFACE OF AN IMAGE BEARING MEMBER - An image forming apparatus including an image bearing member having a static friction coefficient of from 0.1 to 0.3, a latent electrostatic image forming device, a developing device, and a cleaning device including a cleaning blade to remove remaining toner, in which the contact pressure of the cleaning blade to the image bearing member ranges from 1.5 to 10 g/cm, and the image bearing member and the cleaning blade satisfy the following relationships (1) and (2): | 10-07-2010 |
20100284718 | IMAGE FORMING DEVICE - An image forming device having a cleaning device that removes an adhered object on an endless belt body by contacting the endless belt body, which rotates while under tension. The endless belt body is formed with the following includes: an indentation Young's modulus is equal to or more than 5.5 GPa and is equal to or less than 10.0 GPa, and a specularity of a contacting surface that contacts the cleaning device is equal to or more than 50 and is equal to or less than 100. | 11-11-2010 |
20100316424 | CLEANING BLADE FOR IMAGE-FORMING APPARATUS - A cleaning blade for image-forming apparatuses is provided which is reduced in the coefficient of friction to attain a shortened slipping distance and thereby produce excellent cleaning performance. The cleaning blade can be easily produced at low cost. The cleaning blade for image-forming apparatus is formed from a thermoplastic elastomer comprising: a rubber ingredient comprising any one of a hydrogenerated acrylonitrile-butadiene rubber (HNBR), carboxylated acrylonitrile-butadiene rubber (XNBR), hydrogenerated carboxylated acrylonitrile-butadiene rubber (HXNBR), styrene-butadiene rubber (SBR), and ethylene/propylene/diene copolymer rubber (EPDM); and a thermoplastic fluororesin powder incorporated as the only resin powder in the rubber ingredient. The thermoplastic fluororesin powder has been incorporated in an amount of 1-80 parts by mass per 100 parts by mass of the rubber ingredient. The thermoplastic fluororesin powder has an average particle diameter of 0.1-20 um. | 12-16-2010 |
20110085834 | Cleaning device and image forming apparatus incorporating same - A cleaning device for an electrophotographic image forming apparatus includes a primary cleaning brush, a collecting roller, and a blade. The primary cleaning brush is configured to remove post-transfer residual toner remaining on an image carrying member. The collecting roller is configured to cause the post-transfer residual toner adhering to the first cleaning brush to electrostatically adhere thereto, is made of metal, and has a surface roughness Ra of at least approximately 0.08 micrometers. The blade is configured to come into contact with the collecting roller and mechanically remove the post-transfer residual toner adhering to the collecting roller. | 04-14-2011 |
20110091255 | METAL BLADE CLEANING OF AN AMORPHOUS SILICON RECEPTOR - This is a shim cleaning blade for use in a novel cleaning station of an electrophotographic marking system having an a-Si photoconductive surface. The cleaning blade is preferably made from stainless steel but other metals can be used if suitable. The blade has a thickness of about 0.05-0.2 mm, but best results are obtained when using a thickness of about 005-0.1 mm. The cleaning blade contacts the photoconductive surface it is cleaning at an angle of from about 2 to about 40 degrees. | 04-21-2011 |
20110135361 | CLEANING BLADE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE SAME - A cleaning blade for use in an image forming apparatus including a holder, and an elastic blade attached to the holder and in contact with an image bearing member, the elastic blade being impregnated with an acrylate polymer from at least one surface to a depth of from 5 to 100 μm. | 06-09-2011 |
20110150547 | IMAGE FORMING APPARATUS - An image forming apparatus includes a first drum for bearing an electrostatic latent image; a first developing device for developing the latent image with toner into a toner image on the first drum; a first cleaning device having a cleaning blade for cleaning the first drum; a second drum; a second developing device for developing the latent image with toner into a toner image on the second drum; a second cleaning device having a cleaning blade for cleaning the second drum; a rotatable member contactable to the first drum and the second drum; wherein the rotatable member is an intermediary transfer member for receiving the toner images from the drums and for transferring it onto a sheet, or a feeding member for feeding a sheet for receiving the toner images; and a control device for controlling a toner supply process for supplying toner into between the first drum and the blade of the first cleaning device when formation of the toner image to be transferred onto the sheet is not carried out, wherein the control device selects between the toner supply process using the toner accommodated in the first developing device and the toner supply process using the toner accommodated in the second developing device, in accordance with an amount of the toner accommodated in the first developing device or the second developing device. | 06-23-2011 |
20110211883 | CLEANING BLADE FOR ELECTROSTATOGRAPHIC APPARATUS - A cleaning blade member including a polymer substrate and a fluorinated polyurethane ceramer coating surface layer. The polymer substrate may comprise polyurethane. The fluorinated polyurethane ceramer coating may comprise a fluorinated polyurethane silicate hybrid organic-inorganic network formed as a reaction product of a fluorinated polyurethane having terminal reactive alkoxysilane groups with a tetraalkoxysilane compound. The fluorinated polyurethane ceramer coating may be coated on the polymer substrate of the cleaning blade without any primer layer therebetween. Also described is an electrostatographic apparatus comprising a toner-contacting member and such a fluorinated ceramer coated cleaning blade for the toner-contacting member. The toner-contacting member may comprise an endless transport web. The fluorinated ceramer enhances the ability of particles to be released from the surface therefore reducing contamination generated due to particles attached to the surface. Coating of a cleaning blade made of polyurethane with such fluorinated ceramer resulted in improved cleaning performance. | 09-01-2011 |
20110217102 | CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - A cleaning blade, including a reed-shaped elastic blade configured to move an edge of the elastic blade on the surface of a member to be cleaned while contacting the edge to the surface thereof to remove a powder therefrom, wherein surface layers harder than the elastic blade are formed on an distal face having the edge as one of its lines facing the member to be cleaned and an proximal face having the edge as one of its lines parallel in a thickness direction of the blade, respectively, and wherein a friction coefficient between the surface layer on the distal face of the blade and the member to be cleaned is lower than that between the surface layer on the proximal face of the blade and the member to be cleaned. | 09-08-2011 |
20110229233 | Cleaning device, and image forming apparatus, process cartridge, and intermediate transfer unit each including the cleaning device - A cleaning device includes a laminated blade member including multiple layers made of materials different in permanent set value and a holding member to hold the blade member. The multiple layers include an edge layer formed of a material higher in permanent set value among the materials and a backing layer disposed against a distal surface of the edge layer. The laminated blade member includes a leading edge where an edge portion of the edge layer contacting a cleaning target is located and a trailing edge where the holding member supports the blade member. A ratio of a thickness of the edge layer to a thickness of the backing layer at the trailing end of the blade member is smaller than a ratio thereof at the leading edge of the blade member. | 09-22-2011 |
20110236095 | CLEANING BLADE AND IMAGE FORMING APPARATUS - A cleaning blade includes a cleaning layer to face a image holding body and a back layer to be disposed at a side opposite to the image holding body and removes discharge products and developer residues that are stuck to a surface of the image holding body in such a manner that an edge of the cleaning layer comes into contact with the surface of the image holding body, and the back layer and the cleaning layer are molded integrally and a surface roughness Ra of the cleaning layer is lower than or equal to 0.12 μm. | 09-29-2011 |
20110243624 | BLADE FOR ELECTROPHOTOGRAPHIC APPARATUS, AND PROCESS FOR MANUFACTURING THE SAME - To provide a blade for electrophotographic apparatus that can have much superior durability as being made low frictional at its touching part and also improved in bonding force between the touching part and the blade member, a blade for electrophotographic apparatus is provided which has a blade member having a touching part which is to come into touch with an object member, and a support member which holds the blade member; the touching part being formed of a material which is different from that for the blade member; the touching part having a touching face having a coefficient of static friction which is smaller than that of a surface of the blade member; and the touching part having a joint surface at which the touching part is joined with the blade member which joint surface has a center line average roughness Ra of from 0.5 μm to 10.0 μm. | 10-06-2011 |
20110311286 | CLEANING BLADE PARAMETER ADJUSTMENT SYSTEM - A cleaning blade assembly within a printing device is positioned to contact a surface to be cleaned. There is a first opening within the cleaning blade assembly and a first pin within the first opening. There is also a second opening within the cleaning blade assembly, and a second pin within the second opening. The first and second pins connect the cleaning blade assembly to the printing device. The first pin has a first cam surface that is rounded and is off-center with respect to the axis of the first pin. The cam surface is parallel to the axis of the first pin and is positioned within the first opening such that rotation of the first pin within the first opening causes the cleaning blade assembly to move in a direction perpendicular to the axis of the first pin. | 12-22-2011 |
20120020711 | CLEANING EDGE MODIFICATION FOR IMPROVED CLEANING BLADE LIFE AND RELIABILITY - According to aspects of the embodiments, there is provided an apparatus comprising a cleaning unit with a blade holder that rotates about a pivot point, the cleaning blade is coupled to the blade holder and is positioned to chisel excess toner from a photoreceptor surface. Geometrical changes produce a blade having a plurality of slanted surfaces at the working end of the blade one at an obtuse angle, in the range of 93 degrees to 97 degrees, and a second at an acute angle that forms an offset point between the cleaning edge and the intersection of the two angles. A double cut allows for improvement in the cleaning tip stiffness using the first cut, while the second cut increases the contact width and improves the pressure distribution at the working edge. | 01-26-2012 |
20120063826 | CLEANING BLADE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING SAME - A cleaning blade for cleaning a moving surface of an object by contacting an edge thereof with the moving surface is provided. The cleaning blade includes a strip-shaped elastic main body, in which a leading end portion thereof including the edge is impregnated with an ultraviolet-crosslinked resin; and a cover layer, which is located on a surface of a portion of the crosslinked resin-impregnated portion including the edge as an outermost layer and which has higher hardness than the strip-shaped elastic main body. | 03-15-2012 |
20120063827 | CLEANING BLADE, CLEANING DEVICE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND HOLDER MEMBER - A cleaning blade which is provided in a cleaning device that removes non-transferred toner remaining on an image carrier includes: a blade member in which an edge thereof is in contact with the image carrier over a longitudinal direction thereof; and a holder member that holds the blade member and has an L-shape in a cross-section that is perpendicular to the longitudinal direction. The holder member includes a supporting portion that cantilevers the blade member on a surface thereof such that the edge of the blade member protrudes toward the image carrier, and a bent portion that is connected to the supporting portion to form the L-shaped cross-section and is formed to have a lateral length that is shorter at least a lateral length at one end portion in the longitudinal direction thereof than at a middle portion thereof in the longitudinal direction. | 03-15-2012 |
20120082494 | CLEANING DEVICE, CLEANING METHOD AND IMAGE FORMING APPARATUS - According to one embodiment, a cleaning device which is used in an electrophotography-type image forming apparatus includes a blade which removes toner remaining on a surface of a photoconductor, and a linear pressure of the blade with respect to the surface of the photoconductor and a value χ of rebound resilience of a material of the blade at a temperature of 23° C. satisfy a relationship shown in the expression below. | 04-05-2012 |
20120087704 | CLEANING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME - A cleaning device including a normally charged toner cleaning member provided in contact with a cleaning target at a contact position to remove normally charged toner from the cleaning target, a reversely charged toner cleaning member provided in contact with the cleaning target at a contact position upstream from the normally charged toner cleaning member to remove reversely charged toner from the cleaning target, and a pre-cleaning member provided in contact with the cleaning target at a contact position upstream from both the normally and reversely charged toner cleaning members to remove normally charged toner from the cleaning target. The contact position between the pre-cleaning member and the cleaning target has a width wider than a width of the contact position between the normally charged toner cleaning member and the cleaning target and a width of the contact position between the reversely charged toner cleaning member and the cleaning target. | 04-12-2012 |
20120114403 | CLEANING DEVICE AND IMAGE FORMING APPARATUS - A cleaning device includes a scrape-off member provided so as to contact an image carrying member, the scrape-off member scraping off powder adhered to a surface of the image carrying member; a net-like member provided between the contact portion of the scrape-off member and a duct, the net-like member trapping the scraped off powder by a flow of air; and the duct provided downstream from the net-like member in a direction of the flow of air, the duct sucking the air so as to guide the scraped off powder to the net-like member. | 05-10-2012 |
20120163890 | CLEANING BLADE FOR ELECTROPHOTOGRAPHIC APPARATUS, AND METHOD FOR PRODUCING THE SAME - A cleaning blade for an electrophotographic apparatus including a thermosetting polyurethane elastomer blade member, in which in the blade member, a concentration of nitrogen is gradually increased from an inside of a contact region to contact the image bearing member toward the surface of the contact region; and a relationship between an amount of the concentration of nitrogen to be changed Δ1=N | 06-28-2012 |
20120237277 | DEVELOPING UNIT AND IMAGE FORMING APPARATUS HAVING THE SAME - A developing unit and an image forming apparatus are disclosed. The developing unit includes an image carrier on which an electrostatic latent image is formed, a developing member to supply a developer to the image carrier, and a first cleaning member having a first cleaning blade to remove a non-transferred developer on the image carrier. The first cleaning blade is configured to be reversible between a counter disposition, which is opposite to a rotation direction of the image carrier while the image carrier is in a printing operation, and a trailing disposition, which corresponds to the rotation direction. | 09-20-2012 |
20120301197 | CLEANING BLADE MEMBER AND APPARATUS WITH CONTROLLED TRIBOCHARGING - A cleaning system has a composite photoreceptive imaging member having a support layer, an electrically conductive layer interfacing with the support layer, a photoconductive charge generation layer interfacing with the electrically conductive layer and generating charge holes and electrons in response to exposure to electromagnetic radiation; a charge transport layer that allows charge holes to migrate from the charge generation layer to the outer surface while resisting migration of electrons from the charge generation layer to the outer surface and a cleaning blade member having a cleaning surface layer against the electrostatic surface to at least in part remove toner and debris from the outer surface. The cleaning surface layer has a first material and a second material that are combined in proportions that cause a triboelectric charge to be formed on the outer surface having a difference of potential of between zero and minus 20 volts. | 11-29-2012 |
20130017007 | IMAGE FORMING APPARATUS - An image forming apparatus includes a rotatable drum; a developing device for developing a latent image formed on the drum into a developer image; and a cleaning blade for removing developer remaining on the drum after the developer image is transferred from the drum onto a developer image receiving member. After image formation, a predetermined amount of strain of the cleaning blade is released and the drum is subsequently rotated. The drum is subsequently rotated in a direction identical to a rotation direction of the drum during image formation. | 01-17-2013 |
20130028643 | ELECTROPHOTOGRAPHIC PRINTER AND TRANSITIONAL CLEANING SYSTEM - Printers and cleaning systems are provided. A cleaning system has an actuator that moves the electrostatic imaging member in a second direction opposite the first direction and a frame positions a mounting within a first range of mounting distances from the electrostatic imaging member with the mounting holding a cleaning blade at a holding angle that causes a free length of the cleaning blade to extend along a first direction to position a cleaning end of the cleaning blade to engage the electrostatic imaging member for movement therewith. The electrostatic imaging member urges the cleaning end in the second direction to deflect the cleaning blade to extend along the second direction to position the cleaning end to wipe the electrostatic imaging member and the free length, the holding angle and the working angle cause the cleaning edge to wipe at a working angle between about 85 and 89 degrees. | 01-31-2013 |
20130034375 | CLEANING BLADE AND IMAGE FORMING APPARATUS - A cleaning blade, which is configured to be pressed against a toner image carrier that rotates in one direction, for removing residual toner from the toner image carrier, the cleaning blade having: a contact layer that is located in a side to come into contact with the toner image carrier; and a supporting layer that is located in a side not to come into contact with the toner image carrier, wherein tensile stress characteristic curves of a material of the contact layer and a material of the supporting layer intersect with each other. An image forming apparatus having a toner image carrier and the cleaning blade. | 02-07-2013 |
20130071164 | CLEANING MEMBER, CLEANING DEVICE AND PROCESS CARTRIDGE - A cleaning member for removing a developer from a surface of a member to be cleaned includes: a blade portion contactable to the member to be cleaned; and a flexible supporting member for supporting the blade portion. The supporting member includes a blade supporting portion supporting the blade portion is provided, a portion to be fixed for being fixed to a fixing portion, and a bent portion provided at a longitudinal end portion of the blade supporting portion. | 03-21-2013 |
20130189010 | CLEANING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Representative configurations of a cleaning apparatus, a process cartridge and an image forming apparatus according to the present invention includes: a cleaning blade which abuts on a photosensitive drum which bears a toner image, and which removes toner which remains on the photosensitive drum; compression springs which are compressed to pressurize the cleaning blade against the photosensitive drum; and spring attaching portions which regulate phases of compression springs such that positions of the compression springs in a circumferential direction are at predetermined phase positions when the compression springs are attached. | 07-25-2013 |
20130189011 | CLEANING DEVICE AND IMAGE FORMING APPARATUS - A representative configuration of a cleaning device and an image forming apparatus according to the present invention includes: a photosensitive drum which bears a toner image; a cleaning blade which abuts against the photosensitive drum and removes a toner remained in the photosensitive drum; a compression coil spring which is compressed to pressurize the cleaning blade against the photosensitive drum; and a positioning boss which is arranged to face the compression coil spring, with a predetermined gap being provided therebetween, allows a movement in a direction perpendicular to a compression direction of the compression coil spring, and regulates a movement of the compression coil spring such that the compression coil spring is not moved by more than a predetermined amount in the direction perpendicular to the compression direction of the compression coil spring. | 07-25-2013 |
20130189012 | CLEANING BLADE, AND IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE USING THE CLEANING BLADE - A cleaning blade including a strip-shaped elastic blade having at least one obtuse-angled edge on a tip portion thereof, and a cover layer, which is located on a surface of the tip portion of the elastic blade including the obtuse-angled edge and which is harder than the elastic blade. The obtuse-angled edge having the cover layer thereon is contacted with a moving surface of a member to be cleaned to remove a powdery material from the moving surface of the member. | 07-25-2013 |
20130195529 | CLEANING DEVICE AND IMAGE FORMING APPARATUS - As a typical configuration of a cleaning device and an image forming apparatus according to the invention, in a cleaning device including a cleaning blade which cleans an image bearing member and a plurality of compression coil springs which apply a force from the cleaning blade to the image bearing member, a plurality of bosses is provided so as to fix the plurality of compression coil springs, the bosses provided with the plurality of compression coil springs is selectable from the plurality of bosses, and the positions of the bosses provided with the plurality of compression coil springs are adjusted so as to adjust the abutting pressure of the cleaning blade. | 08-01-2013 |
20130243506 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus including at least a photoreceptor; and a cleaning blade formed of a strip-shaped elastic blade to contact an edge line to the surface of the photoreceptor, wherein the photoreceptor includes a surface layer comprising a particulate material, and the edge line of the cleaning blade includes a substrate of the elastic blade; a mixed layer having a thickness not less than 1.0 μm, formed of the substrate and at least one of an acrylic resin and a methacrylic resin, located at the surface of the substrate; and a surface layer having a thickness not less than 0.1 μm, formed of at least one of an acrylic resin and a methacrylic resin, located on the surface of the substrate. | 09-19-2013 |
20130243507 | CLEANING BLADE, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - A cleaning blade, including a strip-shaped elastic blade to contact the surface of a member to be cleaned, traveling on an edge line of the elastic blade, to remove a powder from the surface thereof, wherein the edge line of the elastic blade is impregnated with an ultraviolet curable resin including a fluorinated acrylic monomer, a surface layer harder than the elastic blade is formed on each of an under surface thereof, having the edge line as one line of the under surface and facing the member, and an apical surface thereof, having the edge line as one line of the apical surface and being parallel to a direction of the thickness thereof, and the apical surface is impregnated with the ultraviolet curable resin at a depth of from 50 to 150 μm and the under surface is impregnated therewith at a depth of from 20 to 100 μm. | 09-19-2013 |
20130315643 | CLEANING DEVICE FOR IMAGE CARRIER AND IMAGE FORMING APPARATUS INCLUDING CLEANING PORTION FOR IMAGE CARRIER - A cleaning device includes a cleaning portion and a pressing portion. The cleaning portion comes into contact with an image carrier that is adapted to carry a toner image. The pressing portion includes a clamping surface and a protruding portion and presses the cleaning portion against the image carrier. The clamping surface clamps the cleaning portion from both sides in cooperation with the image carrier. The protruding portion protrudes from the clamping surface toward the image carrier. | 11-28-2013 |
20140064810 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus includes an electrophotographic photoreceptor; and a cleaning blade. The electrophotographic photoreceptor includes an outermost layer having a ten-point average roughness Rz of from 0.5 to 2.4 μm and an average interval between concavities and convexities Sm of from 30 to 300 μm, and the cleaning blade includes a reed-shaped elastic blade having a contact point to the electrophotographic photoreceptor. The contact point includes a substrate; a mixed layer overlying the substrate, including a material forming the substrate and at least one of an acrylic resin and a methacrylic resin and having a thickness not less than 1.0 μm; and a surface layer overlying the mixed layer, including at least one of an acrylic resin and a methacrylic resin and having a thickness not less than 0.1 μm. | 03-06-2014 |
20140064811 | IMAGE FORMING APPARATUS - The present invention provides an image forming apparatus including a charger that includes a case surrounding the discharge electrode and having an opening on the photosensitive member side and a grid disposed in the opening and having a mesh area, a shutter that includes the fiber opening and closing the opening, and first and second contact members that are disposed on a downstream of the charger and an upstream of the cleaning blade in a rotational direction of the photosensitive member and come in contact with areas of the photosensitive member corresponding to both longitudinal ends of the mesh area of the grid. | 03-06-2014 |
20140086653 | CLEANING BLADE, CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a cleaning blade having at least a portion that comes in contact with a member to be cleaned is configured of a member that contains polyurethane rubber, and that has an endothermic peak top temperature obtained by differential scanning calorimetry in a range of from 180° C. to 220° C. | 03-27-2014 |
20140086654 | IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - An image forming apparatus includes an image holding member, a developing device which accommodates a toner which contains at least one type of external additive having an average particle size of 0.02 μm or greater, and toner particles having a surface with the external additive externally added thereto, and forms an image developed with the toner on a surface of the image holding member, a transfer device which transfers the developed image formed on the image holding member onto a recording medium, and a cleaning device which is provided with a cleaning blade constituted by a member in which at least a part which is brought into contact with the image holding member has a dynamic micro hardness of from 0.25 to 0.65, and brings the cleaning blade into contact with the surface of the image holding member after transfer of the developed image to perform cleaning. | 03-27-2014 |
20140086655 | CLEANING BLADE, CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a cleaning blade in which at least a portion which comes in contact with a member to be cleaned is configured of a member having dynamic ultra micro hardness of from 0.25 to 0.65 and an index K acquired in the following Equation (1) of equal to or more than 15: | 03-27-2014 |
20140086656 | CLEANING BLADE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a cleaning blade for cleaning a surface of an image holding member, including a contact member that contacts the surface of the image holding member at a corner portion of a tip end of the cleaning blade, wherein, when the position of the corner portion in a state where the image holding member is stopped is set to be a standard, a movement distance of the cleaning blade to the position of the corner portion in a state where the image holding member is driven is from 10 μm to 30 μm. | 03-27-2014 |
20140119799 | CLEANER AND IMAGE FORMING APPARATUS - A cleaner includes a rectangle elastic blade contacting a surface-moving object in a counter direction to remove an extraneous matter adhering to the surface of the object. An apical surface of the elastic blade in a longitudinal direction comprises a fluorine atom in an amount not less than 16.3% by atom when measured by X-ray photoelectron spectroscopy. | 05-01-2014 |
20140133893 | CLEANING DEVICE, IMAGE FORMING UNIT AND IMAGE FORMING APPARATUS - A cleaning device for an image forming apparatus includes a cleaning member that removes residual developer that remains on a image carrier, a rotary conveying member that conveys the removed residual developer toward a predetermined direction, and a housing that contains the rotary conveying member. The housing includes a support member that supports the cleaning member; and a protective member that has an inner wall which opposes outer periphery of the rotary conveying member and partially covers the rotary conveying member. The protective member is made of a resin molding material to which a filler is not added. | 05-15-2014 |
20140147182 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member, an image forming unit for forming a toner image and a toner pattern comprising toner not to be transferred onto a recording medium for adjustment of a density of toner on a surface of the image bearing member, a nip forming member contacting the surface of the image bearing member to form a transfer nip therebetween, a transfer bias applicator for applying a transfer bias in which an alternating current component and a direct current component are superimposed to transfer the toner image onto the recording medium in the transfer nip, a first cleaning device to mechanically remove toner remaining on the image bearing member after passing through the transfer nip. The transfer bias applicator applies a charge eliminating bias to remove charge from toner in the toner pattern when the toner pattern passes through the transfer nip. | 05-29-2014 |
20140153987 | CLEANING BLADES HAVING EXCELLENT CLEANING PERFORMANCE AND DURABILITY, CLEANING UNITS, ELECTROPHOTOGRAPHIC IMAGING APPARATUSES AND ELECTROPHOTOGRAPHIC CARTRIDGES EMPLOYING THE SAME - A cleaning blade to remove a residual toner present on a surface of an electrophotographic photoreceptor, the cleaning blade having an excellent cleaning performance in a low temperature environment having a temperature range of about −5° C. to about 20° C., and having an excellent abrasion resistance and an excellent durability in a high temperature environment having a temperature range of about 20° C. and up. A cleaning unit, an electrophotographic imaging apparatus, and an electrophotographic cartridge may include the cleaning blade. | 06-05-2014 |
20140153988 | CLEANING DEVICE AND IMAGE FORMING APPARATUS EQUIPPED WITH THE SAME - A cleaning device includes a cleaning unit configured to perform cleaning while in contact with a light transmission member, the cleaning unit being movable with respect to the transmission member in a first direction and a second direction differing in orientation. The cleaning unit includes a first cleaning portion and a second cleaning portion capable of coming into contact with the transmission member, moves in the first direction while keeping the first cleaning portion in contact with the transmission member and keeping the second cleaning portion away from the transmission member, and moves in the second direction while keeping the first cleaning portion away from the transmission member and keeping the second cleaning portion in contact with the transmission member. | 06-05-2014 |
20140205338 | CLEANING BLADE, AND IMAGE FORMING APPARATUS USING SAME AND PROCESS CARTRIDGE - Provided is a cleaning blade formed of an elastic blade and configured to abut on the surface of a cleaning target member, which allows a leading end edge portion of the elastic blade to move on the surface thereof, to remove powder from the surface of the cleaning target member. A blade surface of the elastic blade, which has the leading end edge portion of the elastic blade on one side thereof and faces the surface of the cleaning target member, has a Martens hardness of 1.2 N/mm | 07-24-2014 |
20140212193 | IMAGE FORMING APPARATUS - An image forming apparatus includes an apparatus main body, a housing, a photosensitive drum, a cleaning blade, a contact portion, and a contacted portion. The housing and drum are disposed in an internal space of the main body. The blade is a plate-shaped elastic member extending in an axial direction of a rotational axis of the drum, is supported by the housing, and contacts a circumferential surface of the drum for cleaning. The contact portion is disposed opposite the housing in the main body. The contacted portion is disposed at a center portion, in the axial direction, of the housing and is contacted by the contact portion. A position of the center portion, in the axial direction, of the housing is adjusted in a cross section intersecting the axial direction by the housing being inserted into the internal space and the contact portion coming into contact with the contacted portion. | 07-31-2014 |
20140233998 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - A disclosed image forming apparatus forms a toner image on a surface of a surface moving image bearing body and eventually transfers and fixes the toner image onto a recording medium to form an image on the recording medium and removes, by a cleaning apparatus, an adhered matter which is adhered to the surface of the image bearing body after the transferring. In the image forming apparatus, a glass transition temperature (Tg) of a toner is 40-60° C., and the cleaning apparatus causes a tip ridgeline portion of a blade member to be abutted against the surface of the image bearing body to remove the adhered matter from the surface of the image bearing body, and the tip ridgeline portion of the blade member is made of elastic rubber whose 100% modulus value at 23° C. is at least 6 MPa. | 08-21-2014 |
20140255070 | CLEANING BLADE, CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A cleaning blade includes a contact portion that contacts a member to be cleaned, and the contact portion at least contains polyurethane rubber and has at least two different endothermic peak temperatures by differential scanning calorimetry in a range of 100° C. or higher. | 09-11-2014 |
20140321895 | CLEANING BLADE, PROCESS CARTRIDGE, ELECTROPHOTOGRAPHIC APPARATUS, AND POLYESTER URETHANE RUBBER - A cleaning blade includes a polyester urethane rubber. In an IR spectrum measured by μATR on the surface of a contact portion of the polyester urethane rubber at which the cleaning blade comes into contact with a member to be cleaned, a ratio (I | 10-30-2014 |
20140341629 | CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - A cleaning blade includes a blade member formed of a strip-shaped rubber material and having a leading-edge ridge line portion to contact a moving surface of a cleaning target member and remove adhering matter from the surface of the cleaning target member. The blade member has a Martens hardness of 1.0 N/mm | 11-20-2014 |
20140356042 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus includes an image carrier, a charging mechanism to charge a surface of the image carrier, an electrostatic latent image forming mechanism to form an electrostatic latent image on the surface of the image carrier, a developing mechanism to develop the electrostatic latent image formed on the surface of the image carrier into a toner image, a transfer mechanism to transfer the toner image on the surface of the image carrier to a transfer body, and a cleaning mechanism including a cleaning blade to clean a transfer residue toner adhering to the surface of the image carrier by contacting the surface of the image carrier. The cleaning blade includes a strip shaped elastic blade and a surface layer formed on an opposing surface of the strip shaped elastic blade opposite the surface of the image carrier. | 12-04-2014 |
20150010339 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus includes an image holding member; a charging unit; an electrostatic charge image forming unit; a developing unit that accommodates an electrostatic charge image developer that contains toner particles having a shape factor SF1 of 120 to 145 and hydrophobic inorganic oxide particles having a number average particle diameter of 30 nm to 80 nm and satisfies the Formula (1), and develops the electrostatic charge image formed on the surface of the image holding member to form a toner image, by the electrostatic charge image developer; a transfer unit; and a cleaning unit that includes a cleaning blade which contacts with the surface of the image holding member at contact pressure of 9.8 mN/mm to 21.6 mN/mm, and removes toner remaining on the surface of the image holding member after transferring the toner image by the cleaning blade: | 01-08-2015 |
20150023707 | CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - A cleaning blade includes an elastic member configured to come into contact with a surface of a member to be cleaned and remove residual matter adhering to the surface of the member to be cleaned. The elastic member satisfies the following requirements a and b: a. The elastic member has a contact portion configured to come into contact with the surface of the member to be cleaned and the contact portion includes a modified layer that contains a cured product of an ultraviolet curable composition containing a (meth)acrylate compound; and b. A value obtained by normalizing a peak area ratio S | 01-22-2015 |
20150071691 | Cleaning Apparatus, Image Forming Apparatus, and Toner Crushing Member - A cleaning apparatus includes a blade, a screw, a toner crushing member, and a casing. The toner crushing member is located in contact with the screw. The toner crushing member is provided in association with the screw and configured to crush toner accumulated between the screw and the blade, by being swung by the screw rotating. The casing houses the screw and the toner crushing member. The screw rotates in the direction reverse to the rotational direction of the photoreceptor drum. The toner crushing member is configured having a first part and a second part, with a base-end side of the first part being secured to the casing, and the second part being folded back along a distal-end side of the first part, such that a distal-end side of the second part swings between the blade and the screw, in association with the rotation of the screw. | 03-12-2015 |
20150104231 | CLEANING UNIT, AND IMAGE FORMING APPARATUS - Provided is a cleaning unit including a removing member that contacts with a surface of a cleaning target and removes adherent matters on the surface of the cleaning target, a storage section that stores the adherent matters removed by the removing member, and a supply member that has a blade and rotates the blade in the storage section to supply some of the adherent matters stored in the storage section to the surface of the cleaning target. | 04-16-2015 |
20150132038 | IMAGE FORMING APPARATUS - This invention relates to an image forming apparatus for preventing defects in a cleaning blade, filming on a photoreceptor and image defects, and more particularly to an image forming apparatus comprising a toner comprising an external additive, a photoreceptor containing fluororesin particles in its surface layer, and a cleaning blade for cleaning a surface of the photoreceptor, wherein a primary particle diameter of the fluororesin particles is 2.6-7.5 times as large as a primary particle diameter of the external additive. | 05-14-2015 |
20150139711 | CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - Provided is a cleaning blade including an elastic member configured to abut on a surface of a cleaning target member and remove residual material deposited thereon, wherein elastic member satisfies requirements a to c below,
| 05-21-2015 |
20150331384 | CLEANING BLADE AND IMAGE FORMING APPARATUS - A cleaning blade is arranged to contact a surface of an image carrier to remove a developer on the surface of the image carrier. The cleaning blade is made of an elastic body in which a loss elastic modulus at a temperature of 100° C. and a frequency of 10 Hz is set within a range of 3.0×10 | 11-19-2015 |
20150338819 | IMAGE FORMING APPARATUS AND CLEANING BLADE - An image forming apparatus includes: a rotatable image bearing member; an image forming portion; and a cleaning blade. The cleaning blade has an edge layer which includes an edge portion contacting the image bearing member and which is formed of a first resin material, and has a base layer which is provided superposedly on the edge layer so as to support the edge layer with respect to a thickness direction of the cleaning blade and which is formed of a second resin material different from the first resin material. The cleaning blade includes a hardened portion, at a part of the edge layer including the edge portion, subjected to hardening so as to be harder than another portion of the edge layer. The hardened portion has a length shorter than a length of the edge layer with respect to the thickness direction. | 11-26-2015 |
20150370217 | BLADE MEMBER, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - A blade includes an elastic member including a tip ridgeline to contact the surface of a member to contact. The tip ridgeline includes an impregnation layer impregnated with a cured compound comprising an acrylate or methacrylate compound having an alicyclic structure including 6 or more carbon atoms in its molecule, and has an elastic power in the range of 50% to 80%. | 12-24-2015 |
20160004206 | CLEANING BLADE, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - A cleaning blade cleaning the surface of an object includes a rigid holder; and a strip-shaped elastic body fixed on the holder, including a tip ridgeline to contact the surface of the object. The cleaning blade includes a part having a Martens hardness of from 0.9 to 5.0 N/mm | 01-07-2016 |
20160004207 | CLEANING BLADE, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - A cleaning blade cleaning the surface of an object includes a rigid holder; and a strip-shaped elastic body fixed on the holder, having a tip ridgeline to contact the surface of the object. The elastic body has a Martens hardness M1 in the range of from 0.9 to 10.0 N/mm | 01-07-2016 |
20160011559 | Image Forming Device Having Belt Cleaner and Drum Cleaner Both Provided In One of Drum Units | 01-14-2016 |
20160026146 | IMAGE FORMING DEVICE - An image forming device includes: an image carrier on which a toner image is formed; and a cleaning blade which removes a residual material on the image carrier after the toner image is transferred to a transferred body, wherein the image carrier includes an elastic layer, the cleaning blade is a metallic plate spring, and a tip end of the cleaning blade is pressed against the image carrier by restoring force of the plate spring. | 01-28-2016 |
20160033924 | IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An image forming apparatus is provided which includes an image bearer, a charger, an irradiator, a developing device to develop an electrostatic latent image on the image bearer with a toner to form a toner image, a transfer device to transfer the toner image onto a transfer medium, and a cleaner to remove toner particles remaining on the image bearer without being transferred. The toner includes a mother particle including a binder resin and a colorant and one or more external additives. At least one of the external additives includes primary particles having a number average particle diameter in the range of 0.05 to 0.30 μm. The cleaner includes an elastic body blade having a contact part with the image bearer. The contact part has a surface elastic modulus in the range of 15 to 25 N/mm | 02-04-2016 |
20160033925 | CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE - A cleaning blade, including: rectangular elastic body blade containing cured first-UV-curable resin at tip ridgeline portion thereof, brought into contact with surface of to-be-cleaned member, the cured first-UV-curable resin being formed by impregnating the tip ridgeline portion with the first-UV-curable resin, followed by curing, and depth of the elastic body blade impregnated with the first-UV-curable resin from edge surface thereof is 50 μm-150 μm, wherein the elastic body blade contains surface layer containing cured second-UV-curable resin at the edge surface, wherein load-displacement curve of Martens hardness thereof has inflection points, and is obtained by pressing region of the surface layer thereof via resin particles having average particle diameter of 5 μm-10 μm, and distance of the region from the tip ridgeline portion is 0.5 mm or less, and wherein ratio of displacement at the inflection point, with which load is maximum, to the average particle diameter is 1.5-2.0. | 02-04-2016 |
20160062303 | CLEANING DEVICE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS HAVING THE SAME - A cleaning device configured to remove a developing agent from a photosensitive body, and an electrophotographic image forming apparatus including the cleaning device, are provided. The cleaning device includes a cleaning blade assembly including a cleaning blade configured to remove the developing agent, and a support plate configured to support the cleaning blade. The cleaning device further includes a housing portion configured to support the cleaning blade assembly. The cleaning device further includes a scattering prevention portion configured to prevent the developing agent from leaking through a gap between an end of the cleaning blade and the housing portion in a lengthwise direction, extend in the lengthwise direction over the end of the cleaning blade, and connect the cleaning blade assembly to the housing portion. | 03-03-2016 |
20160109846 | BLADE AND IMAGE FORMING APPARATUS INCORPORATING SAME - An elastic blade includes an edge layer and at least one backup layer laminated on the edge layer. The edge layer includes a contact edge to contact a contact object and an opposing face to oppose the contact object, and the backup layer is greater in elastic power than the edge layer. | 04-21-2016 |
20160124374 | CLEANING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME - A cleaning device includes a cleaner, a plurality of cleaning sub-units, a sub-unit holder, a detachable transmission assembly, and a plurality of joint couplers. The cleaner scrapes off adhered material from a surface of a cleaning target while contacting the surface of the cleaning target. The cleaning sub-units each includes a holder to hold the cleaner and a drive-receive rotator to receive a driving force. The sub-unit holder holds the cleaning sub-units. The detachable transmission assembly includes a driving-force receive rotator to receive a driving force from an external unit and a plurality of drive transmission rotators to transmit the driving force received by the driving-force receive rotator to the drive-receive rotators of the cleaning sub-units. The joint couplers mounted on the drive-receive rotators and the drive transmission rotators couple the drive-receive rotators with the drive transmission rotators in a rotation axial direction. | 05-05-2016 |
20160124375 | CLEANING BLADE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A cleaning blade includes an image region and a non-image region in which Young's moduli at positions separated by a distance of L μm from an edge portion in contact with an photosensitive drum are respectively defined as Y | 05-05-2016 |
20160147192 | CLEANING MEMBER AND IMAGE FORMING APPARATUS - A cleaning member includes a base member comprised of a first material that has a peak temperature of tan δ less than approximately zero degrees Celsius and a contact portion comprised of a second material that has a higher hardness than the first material and a tear strength of approximately 49 kilonewtons per meter or higher, the contact portion contacting an image carrier and cleaning the image carrier. | 05-26-2016 |
20160252849 | FEEDING DEVICE, CLEANING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS | 09-01-2016 |
20160252869 | IMAGE FORMING APPARATUS | 09-01-2016 |
20170235272 | ACCUMULATION REMOVAL DEVICE AND IMAGE FORMING APPARATUS | 08-17-2017 |
20220137544 | CHARGING DEVICE, IMAGE FORMING UNIT, IMAGE FORMING APPARATUS, AND METHOD OF MANUFACTURING CLEANING MEMBER - A charging device includes a charging member that is rotatable and contacts and electrically charges a surface of a charging target member; and a cleaning member that is rotatable and cleans a surface of the charging member, wherein the cleaning member includes a core bar extending in a lengthwise direction, a foam member that is helically wound around the core bar while forming a gap in the lengthwise direction and contacts the charging member, and a first adhesive agent that is provided between the foam member and the core bar, the first adhesive agent contacting a part of the foam member and another part of the foam member that are formed to adjoin each other in the lengthwise direction via the gap. | 05-05-2022 |