| Entries |
| Document | Title | Date |
|---|
| 20080205947 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming device includes an image support body on which an electrostatic latent image is formed. A developer develops the electrostatic latent image on the image support body with a toner to form a toner image. The toner image on the image support body is transferred to an intermediate transfer belt. A primary transferee transfers the toner image on the image support body onto the intermediate transfer belt, and a secondary transferee transfers the toner image on the intermediate transfer belt onto paper. The image support body and the primary transferee are offset. A volume resistance of the intermediate transfer belt is adjusted to a value within the range of 1×10 | 08-28-2008 |
| 20080226362 | IMAGE FORMING APPARATUS - In an image forming apparatus, a pre-transfer guide ( | 09-18-2008 |
| 20080240801 | Transfer Apparatus, Image Forming Apparatus Having the Same and Image Forming Method - A transfer apparatus can uniformize the charged amount of toner on the intermediate transfer member and ensure a uniform transfer performance over the entire printing surface by means of a simple arrangement. The transfer apparatus has a primary transfer means arranged corresponding to a plurality of image carriers in order to primarily transfer the toner images on the image carriers, an intermediate transfer member adapted to operate for color superposition by the primary transfer means, a secondary transfer means adapted to operate for secondary transfer of the toner image on the intermediate transfer member onto a transfer medium and a pre-secondary transfer charging means for electrically charging the pre-secondary transfer toner on the secondary transfer means with the opposite polarity, the secondary transfer means being adapted to apply a secondary transfer bias to the toner on the intermediate transfer member with the polarity opposite to that of the primary transfer bias applied at the time of primary transfer. | 10-02-2008 |
| 20080267675 | Intermediate Transfer Member, Method of Manufacturing Intermediate Transfer Member, and Image Forming Apparatus - An objective is to provide an intermediate transfer member exhibiting higher transferability together with higher cleaning ability and durability, a manufacturing apparatus of an intermediate transfer member in which no large-scale equipment such as a vacuum evaporator or the like is managed to be installed, and an image forming apparatus fitted with the intermediate transfer member. Also disclosed is intermediate transfer member | 10-30-2008 |
| 20080310892 | IMAGE-FORMING APPARATUS - An image-forming apparatus comprises,
| 12-18-2008 |
| 20080317520 | IMAGE FORMING APPARATUS - An image forming apparatus includes a substantially horizontally arranged image bearing member; a developing unit, including a plurality of developing devices and supporting the developing devices rotatably relative to the image bearing member; a movable intermediate transfer belt supported by first and second rotation members and facing the developing unit; a primary transfer member forming, together with the image bearing member, a primary transfer portion located near the first rotation member in a moving direction of the intermediate transfer belt, through the intermediate transfer belt; and a secondary transfer member forming, together with the second rotation member, a secondary transfer portion through the intermediate transfer belt. A toner image formed on the image bearing member by the developing unit is transferred on the intermediate transfer belt at the primary transfer portion, and is transferred on a recording material at the secondary transfer portion. | 12-25-2008 |
| 20090041514 | INTERMEDIATE TRANSFER MEMBER, METHOD OF MANUFACTURING INTERMEDIATE TRANSFER MEMBER, AND IMAGE FORMING APPARATUS - An objective is to provide an intermediate transfer member exhibiting higher transferability together with higher cleaning ability and durability, a manufacturing apparatus of an intermediate transfer member in which no large-scale equipment such as a vacuum evaporator or the like is installed, and an image forming apparatus fitted with the intermediate transfer member. Also disclosed is intermediate transfer member | 02-12-2009 |
| 20090067895 | BELT MEMBER AND IMAGE FORMING APPARATUS USING THE BELT MEMBER - A belt member is rotatably extended around a plurality of rotatable members of an image forming apparatus for forming a toner image on a recording material by using a developer containing a magnetic carrier. The belt member includes a layer, formed of a crystalline resin material, having an outer peripheral surface and an inner peripheral surface. The layer has a hardness of 0.25 GPa or more and 0.40 GPa or less at the outer peripheral surface and a hardness of 0.10 GPa or more and 0.20 GPa or less at the inner peripheral surface. | 03-12-2009 |
| 20090074477 | Image Forming Apparatus - An image-forming apparatus, equipped with an intermediate transfer member | 03-19-2009 |
| 20090074478 | Resin composition, molded component, electrophotographic transfer film and image-forming apparatus - A resin composition comprises a polyphenylene sulfide resin and a nylon resin having a χ-parameter of less than 1.3 at 25° C., and has one glass transition temperature, and an image-forming apparatus comprises | 03-19-2009 |
| 20090074479 | Transfer Device and Image Forming Apparatus Including the Same - A transfer device includes: an image carrier belt; a first roller around which the image carrier belt is wound; a second roller around which the image carrier belt wound around the first roller and shifted; a first transfer roller contacting the first roller via the image carrier belt; a second transfer roller contacting the second roller via the image carrier belt; and a transfer belt wound around the first transfer roller and the second transfer roller. A width L | 03-19-2009 |
| 20090074480 | ELECTROCONDUCTIVE ENDLESS BELT - An electroconductive endless belt for use as an intermediate transfer member that is disposed between an image-forming unit and a recording medium, is circularly driven by a drive unit, and temporarily holds a toner image transferred from the image-forming unit and subsequently transfers the toner image onto the recording medium, wherein the electroconductive endless belt has a multilayer structure including at least a surface layer disposed on a base layer, and the base layer is mainly composed of a polyester resin and/or a polyester elastomer and contains a conductive agent, a brominated epoxy resin, and an antimony compound, the polyester elastomer having a melting point of at least 210° C. | 03-19-2009 |
| 20090080948 | IMAGE FORMING APPARATUS - An image forming apparatus includes a plurality of image bearing members; a plurality of primary transferring devices for transferring toner images from the image bearing member onto an intermediary transfer belt provided above the plurality of image bearing members; an intermediary transfer unit including the intermediary transfer belt; a secondary transfer portion for transferring the toner image from the intermediary transfer belt onto a recording material; a feeding path for feeding the recording material upwardly toward the secondary transfer portion; a detecting member for detecting the toner image formed on the intermediary transfer belt; an adjusting device for adjusting a condition under which the image is formed on the image bearing member on the basis of a result of detection of the detecting member; an openable member for opening the feeding path; a guiding mechanism for guiding draw of the intermediary transfer unit toward the feeding path when the openable member opens; and a retracting mechanism for retracting the detecting member away from the intermediary transfer unit with movement of the intermediary transfer unit toward the feeding path. | 03-26-2009 |
| 20090080949 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus which forms a primary image on an intermediate transfer body and then transfers the primary image onto a recording medium, has: a movement device which moves the intermediate transfer body in a movement direction; a recess-projection forming device which forms a recess-projection shape in an image forming surface of the intermediate transfer body; a droplet ejection device which is provided on a downstream side of the recess-projection forming device in terms of the movement direction and ejects droplets of ink onto the image forming surface of the intermediate transfer body in which the recess-projection shape has been formed, to form the primary image; and a transfer recording device which is provided on a downstream side of the droplet ejection device in terms of the movement direction and applies pressure to at least one of the intermediate transfer body and the recording medium in a state where the recording medium makes contact with the primary image formed on the image forming surface of the intermediate transfer body to transfer the primary image onto the recording medium. | 03-26-2009 |
| 20090087231 | Endless Member Drive Apparatus and Image Forming Apparatus - An endless member drive apparatus includes: an endless member that has plane surfaces and rotates by receiving a drive force; a drive support member that supports and drives the endless member; a rotatable support member that includes a rotation shaft, and that supports the endless member; a bearing member that includes: a bearing portion that supports the rotatable support member rotatably, and that supports the rotatable support member in such a manner that the rotatable support member can be moved in an intersecting direction to intersect a tensile direction where a tensile force is generated in the endless member; a positioning portion that positions the rotatable support member, wherein the rotatable support member is moved and positioned by using a force that, in a case where the endless member is rotated, is applied to the rotatable support member, and that goes in the intersecting direction. | 04-02-2009 |
| 20090097888 | TRANSFER BELT UNIT AND IMAGE FORMING APPARATUS USING THE SAME - An image forming apparatus includes a transfer belt unit which has an intermediate transfer belt for supporting toner images and primary transfer rollers for pressing the intermediate transfer belt against corresponding photoreceptor drums and moves the intermediate transfer belt along the surface of each photoreceptor drum to transfer the toner images to the intermediate transfer belt. The intermediate transfer belt is formed so as to be 30 μm to 50 μm in average thickness, each primary transfer roller is arranged at a position, along the moving direction of the intermediate transfer belt, which is deviated downstream with respect to the moving direction from the position where the intermediate transfer belt is in contact with the photoreceptor and which is projected toward the photoreceptor drum side so as to press the intermediate transfer belt against photoreceptor with a nip pressure ranging from 10 gf/cm | 04-16-2009 |
| 20090116881 | INTERMEDIATE TRANSFER BELT - The present invention provides an intermediate transfer belt allowing formation of a high-quality toner image. | 05-07-2009 |
| 20090116882 | ELECTROSTATOGRAPHIC METHOD - The present invention is a method of forming a toner image on a receiving sheet. The method includes forming an electrostatic image on a primary image member and toning the image with a dry toner to form a toner image. The toner includes toner particles having a diameter of between 4 and 10 microns and transfer assisting particles appended to the toner particles surface. The transfer assisting particles have a diameter of between 20 and 100 nm. The toner image is transferred from the primary image member to an intermediate image member having an overcoat layer, the overcoat layer having a Young's modulus of from 250 to 500 MPa. The toner image is transferred from the intermediate image member to a receiving sheet wherein the intermediate image member drives the primary image member or the receiving sheet. | 05-07-2009 |
| 20090123198 | INTERMEDIATE TRANSFER MEMBER, METHOD OF PRODUCING INTERMEDIATE TRANSFER MEMBER, AND IMAGE FORMING APPARATUS PROVIDED WITH INTERMEDIATE TRANSFER MEMBER - The present invention provides an intermediate transfer member having higher transferability and higher cleaning properties aid durability, an apparatus for producing an intermediate transfer member which does not require the provision of any large equipment such as vacuum equipment, and an image forming apparatus comprising the intermediate transfer member. The intermediate transfer member contains a support and, provided on the support, a first inorganic compound layer containing carbon atoms and a second inorganic compound layer as a surface layer, the second inorganic compound layer not containing any carbon atom or containing carbon atoms in a smaller amount than the carbon atoms in the first inorganic compound layer. | 05-14-2009 |
| 20090123199 | IMAGE FORMING APPARATUS - The image forming apparatus according to the present invention has: a transfer unit including an intermediate transfer medium that circularly moves; plural image forming sections provided in parallel with each other from an upstream side to a downstream side along a circulation direction of the intermediate transfer medium, the plural image forming sections each having a photosensitive drum; plural transfer rollers provided in the transfer unit so as to face the photosensitive drums of the plural image forming sections, respectively; and a charge removal means including plural charge removal members respectively provided adjacent to the transfer rollers, to remove electric charges charged on the intermediate transfer medium, with a clearance maintained between the intermediate transfermediumandthe plural charge removal members, the clearance being narrowed gradually from the upstream side toward the downstream side along the circulation direction. | 05-14-2009 |
| 20090129829 | INTERMEDIATE TRANSFER MEMBER, MANUFACTURING APPARATUS OF INTERMEDIATE TRANSFER MEMBER, MANUFACTURING METHOD OF INTERMEDIATE TRANSFER MEMBER AND IMAGE FORMING APPARATUS - An intermediate transfer member which holds a toner image transferred from a first toner image carrier and secondarily transfers the toner image to a surface of an image forming material, wherein the intermediate transfer member comprises a substrate having thereon at least a hard carbon-containing layer. | 05-21-2009 |
| 20090129830 | TRANSFER UNIT AND IMAGE FORMING APPARATUS - Latent images of different colors are superimposed on an intermediate transfer belt of an endless type from image carriers, to form a full color toner image. A tension roller maintains a tension of the intermediate transfer belt. A driving roller drives the intermediate transfer belt. A biasing unit applies the tension to the tension roller. A holding unit holds the tension roller. An image reading sensor detects the toner image formed on the intermediate transfer belt. The image reading sensor is disposed in the holding unit, in an opposite position to the tension roller with respect to the intermediate transfer belt. | 05-21-2009 |
| 20090136270 | IMAGE FORMING APPARATUS - An image forming apparatus is configured to select one of electrically discharging of an intermediate transfer member carried out by applying a voltage to a primary transfer member and electrically discharging of the intermediate transfer member carried out by applying a voltage to a secondary transfer member according to a charged state of the intermediate transfer member after secondary transfer. | 05-28-2009 |
| 20090154964 | IMAGE PROCESSING APPARATUS AND METHOD - An image forming apparatus controls the conveyance speed of a transfer material at the time a leading edge of the transfer material enters a transfer nip, to be slower than the moving speed of an image bearing member. Furthermore, the image forming apparatus controls the conveyance speed of the transfer material at the time a trailing edge of the transfer material exits the transfer nip, to be faster than the moving speed of the image bearing member. | 06-18-2009 |
| 20090162114 | CONTACTING AND SEPARATING MECHANISM AND IMAGE FORMING APPARATUS - A contacting and separating mechanism which causes a first member to contact a second member and separates the first member contacting the second member from the second member is disclosed. The contacting and separating mechanism includes a pressure applying member which is rotated together with the first member by using a force of a first force applying member with a first supporting point as the center and causes the first member to contact the second member and separates the first member contacting the second member from the second member, and separates the first member contacting the second member from the second member by rotating with the first member with a second supporting point as the center by changing the position of the first supporting point. | 06-25-2009 |
| 20090190973 | Image Forming Apparatus - An image forming apparatus includes a latent image forming part configured to form a latent image on an image carrier; a developing part configured to form a toner image by developing the latent image on the image carrier; a first transferring part configured to transfer the toner image on the image carrier to a surface of a transferring medium or a first intermediate transferring part; a second transferring part configured to transfer the toner image on the first intermediate transferring part onto a second intermediate transferring part; a third transferring part configured to transfer the toner image on the second intermediate transferring part onto a third intermediate transferring part; and a fourth transferring part configured to transfer the toner image on the third intermediate transferring part onto a rear surface of the transferring medium; | 07-30-2009 |
| 20090196663 | IMAGE FORMING APPARATUS - An image forming apparatus includes a movable belt; a transfer member opposed to the image bearing member with the belt therebetween; wherein the transfer member has a contact surface substantially parallel with a surface of the belt and contacted to the belt, and wherein when the belt is moving, the belt rubs the contact surface, and a toner image is transferred from such a part of image bearing member as is opposed to the contact surface; and a supporting member for supporting the transfer member, the supporting member being swingable. | 08-06-2009 |
| 20090208257 | IMAGE FORMING APPARATUS - One end of a sheet guiding member on a transfer nip side is located on a straight line connecting an exit of a registration nip formed between a pair of registration rollers and an entrance of the transfer nip or on an opposite side of an intermediate transfer belt across the straight line and on one side of a triangle formed by connecting rotation centers of the transfer member, the transfer roller, and the transfer guide roller or inside the triangle. | 08-20-2009 |
| 20090208258 | INTERMEDIATE TRANSFER MEDIUM, AND IMAGE FORMING APPARATUS USING THE INTERMEDIATE TRANSFER MEDIUM - An intermediate transfer belt, which receives plural color toner images from one or more image bearing members and then transfers the plural color toner images onto a receiving material. The intermediate transfer belt includes a substrate; and an outermost layer located overlying the substrate and including an epoxy-silicone copolymer. An image forming apparatus including at least one image bearing member configured to bear plural color toner images thereon; a primary transfer device including the intermediate transfer belt, wherein the primary transfer device transfers the plural color toner images from the at least one image bearing member to the intermediate transfer belt to form a combined color toner image thereon; and a secondary transfer device configured to transfer the combined color toner image onto a receiving material. | 08-20-2009 |
| 20090245895 | CIRCULAR BODY, CIRCULAR BODY UNIT, AND IMAGE FORMING APPARATUS - This invention provides a circular body, which is used for an image forming apparatus employing an electrophotographic system, the circular body containing: at least an _inner layer containing resin and an outer layer that is laminated on an outer circumferential surface side of the inner layer and contains resin; and, as a conductive agent, polyaniline in the outer layer and carbon black in the inner layer; and satisfying the following relational expressions (1) and (2): | 10-01-2009 |
| 20090279925 | BELT FOR IMAGE FORMING APPARATUS - A belt for an image forming apparatus having at least an elastic layer on a substrate composed of polyimide resin. The elastic layer is composed of an imide-modified elastomer. This enables the belt for an image forming apparatus achieving high image quality, high speed printing and excellent durability. The imide-modified elastomer is preferably an imide-modified polyurethane elastomer. The storage elastic modulus E′ at 50° C. of the imide-modified elastomer is preferably in the range of 1.0×10 | 11-12-2009 |
| 20090279926 | IMAGE FORMING APPARATUS - There is provided an image forming apparatus including:
| 11-12-2009 |
| 20090317150 | IMAGE FORMING APPARATUS AND TRANSFER DEVICE THEREOF - An image forming apparatus and a transfer device thereof are disclosed. The transfer device includes an intermediate transfer belt, at least one intermediate transfer belt roller to maintain tension in the intermediate transfer belt, transfer rollers to press the intermediate transfer belt to image carriers and a state changing device to change an operating state between at least a first state, in which the tension in the intermediate transfer belt is released, and a second state, in which select ones of the transfer rollers are separated from the intermediate transfer belt. | 12-24-2009 |
| 20100080631 | HEAT TRANSMISSION MEMBER INCLUDED IMAGE FORMING APPARATUS - An image forming apparatus for transferring and superimposing toner images formed on plural image bearers onto an endless intermediate transfer member in an electric field created between the plural image bearers and plural semi conductive transfer members internally contacting the endless intermediate transfer member. The image forming apparatus includes a heat generating member arranged inside the intermediate transfer member to generate heat. A heat transfer member is provided to transfer the heat to the plural semi conductive transfer members. | 04-01-2010 |
| 20100080632 | TRANSFER CHARGER AND IMAGE FORMING APPARATUS - The present invention provides a transfer charger which provides an intermediate transfer belt with a sufficient transfer efficiency, does not wear in contact with an inner surface of the intermediate transfer belt, has a low frictional property, and is excellent in its friction stability and an image-forming apparatus. A transfer charger ( | 04-01-2010 |
| 20100098466 | INTERMEDIATE TRANSFER MEMBER AND IMAGE FORMATION APPARATUS - The invention provides an intermediate transfer member which is excellent in transferability and adhesion property and exhibits superior durability (releasability, resistance to lack of line images and cracking resistance) even after being used or aged under a severe environment over a long period of time and an image forming apparatus provided therewith. The intermediate transfer member comprises a substrate having thereon from the substrate side a first inorganic compound layer and a second inorganic compound layer, wherein a layer thickness ratio of the second inorganic compound layer to the first inorganic compound layer is not less than 1.0 and not more than 5.0, a carbon content of the first inorganic compound layer is not less than 0.5% by number of atoms and not more than 10% by number of atoms, and a carbon content of the second inorganic compound layer is less than 0.1% by number of atoms. | 04-22-2010 |
| 20100124445 | Transfer Target Object Separation Apparatus, Transferring Apparatus, Image Formation Apparatus, and Transfer Target Object Separation Control Method - A transfer target object separation apparatus includes: a transfer target object movement member that moves a transfer target object while in contact with a first surface of the transfer target object; and a transfer target object separation suction section that sucks a second surface of the transfer target object opposite the first surface to separate the transfer target object from the transfer target object movement member. The transfer target object separation suction section includes a first cylindrical rotation member that has a suction inlet, and a second cylindrical rotation member that is fitted on the first cylindrical rotation member and has a hole through which the second surface of the transfer target object is sucked. | 05-20-2010 |
| 20100209150 | IMAGE-FORMING APPARATUS - An image-forming apparatus is provided with: an intermediate transfer belt that has a hard layer formed on a surface thereof and supports a toner image that has been primarily transferred on the hard layer from a latent-image supporting member; and a secondary transfer roller that is pressed onto the intermediate transfer belt supporting the toner image with an image-recording medium being interposed therebetween, wherein a toner is supplied to a non-image area | 08-19-2010 |
| 20100226697 | IMAGE FORMING APPARATUS AND ELECTRO PHOTOGRAPH USE TONER PRODUCING METHOD - An image forming apparatus includes a first image bearer that bears a latent image to be developed as a toner image, and a second image bearer that includes an intermediate transfer member. A first transfer device transfers the toner image from the first to the second image bearers. A second transfer device transfers the toner image from the second image bearer to a printing medium. The below described one of inequalities is satisfied when the toner is compressed by centrifugal force of 2.6×10 | 09-09-2010 |
| 20100260521 | IMAGE FORMING APPARATUS - Provided is an image forming apparatus, including: a first image bearing member; a first transfer member that comes into contact with the intermediate transfer member; a colored toner image forming portion; a second image bearing member; a second transfer member; and a transparent toner image forming portion for forming the transparent toner image wherein the transparent toner image forming portion is provided on an upstream side with respect to the colored toner image forming portion in a movement direction of the intermediate transfer member, and a distance between a most upstream end of the second contact area and the second transfer member in a rotation direction is larger than a distance between a most upstream end of the first contact area and the first transfer member in a rotation direction. | 10-14-2010 |
| 20110044732 | Transfer unit and image forming apparatus employing the same - A transfer unit, which transfers a toner image formed on at least one image support to a printing medium, and an image forming apparatus employing the same. The transfer unit includes: an intermediate transfer body to the toner image from the image support, which has a curved transfer surface and an ASKER-A hardness of from about 25° to 40°; a transfer member, which has an ASKER-C hardness of from about 45° to 70°, and which contacts the intermediate transfer body, with a printing medium being interposed therebetween, and transfers the toner image from the intermediate transfer body to the printing medium. The transfer unit may further include: a de-electrifying member having a DC power and an AC power concurrently applied thereto, to de-electrify the printing. | 02-24-2011 |
| 20110129264 | METHOD AND PRINTING APPARATUS TO PRINT A CONTINUOUS PRINTING SUBSTRATE - In a method and printing apparatus to print a continuous printing substrate, a liquid film with toner and courier fluid is transported to a charge image carrier to develop charge images into toner images. Transport pairs are used comprising rotating transport members in the transport of the liquid film to the charge image carrier and from the charge image carrier to the printing substrate. Given a changing print speed of the printing apparatus at least one of the respective transport pairs is adjusted to provide a respective separation of the transport members from one another so that a substantially same quantity of the liquid film is always conveyed by the respective transport pair. | 06-02-2011 |
| 20110150540 | TRANSFER DEVICE AND IMAGE FORMING APPARATUS - An image forming apparatus includes an intermediate transfer belt, a photosensitive belt, a primary transfer roller, a secondary-transfer opposing roller, and a secondary transfer roller. The photosensitive belt comes into contact with a surface of the intermediate transfer belt to form a primary transfer nip. The secondary-transfer opposing roller comes into contact with the surface of the intermediate transfer roller to form a secondary transfer nip. The closest distance between a surface of the photosensitive belt and that of the primary transfer roller is greater than the thickness of the intermediate transfer belt. A toner image on the intermediate transfer belt is transferred onto a recording sheet at the secondary transfer nip while a transfer bias is applied to the secondary transfer roller. | 06-23-2011 |
| 20110182630 | IMAGE FORMING APPARATUS - An outer diameter of a transfer counter roller is made larger than that of a transfer roller to reduce an electrical discharge phenomenon and influence on a toner image. | 07-28-2011 |
| 20110188901 | INTERMEDIATE TRANSFER MEMBER AND METHOD OF MANUFACTURE - The present teachings provide an intermediate transfer member which includes a substrate layer and a surface layer disposed on the substrate layer. The surface layer includes a polyimide polymer having the formula: | 08-04-2011 |
| 20110188902 | IMAGE FORMING APPARATUS - An image forming apparatus includes an image bearing member for bearing a toner image; an endless rotatable intermediary transfer belt onto which the toner image is to be transferred from the image bearing member; a transfer device disposed at a position in which the transfer device opposes the image bearing member through the intermediary transfer belt, the transfer device including a sheet member surface-contacted to an inner surface of the intermediary transfer belt and including an urging member for urging the sheet member toward the intermediary transfer belt; and a primary transfer voltage source for applying a voltage to the sheet member. With respect a rotational direction of the intermediary transfer belt, an upstream end portion of a contact area formed between the intermediary transfer belt and the sheet member and an upstream end fportion of a contact area formed between the sheet member and the urging member are within a range of a contact area formed between the intermediary transfer belt and the image bearing member. The upstream end portion of the contact area formed between the intermediary transfer belt and the sheet member is located upstream of the upstream end portion of the contact area formed between the sheet member and the urging member. | 08-04-2011 |
| 20110206422 | INTERMEDIATE TRANSFER MEMBER - Disclosed is an intermediate transfer member that, for example, even when a large number, for example, 160,000 sheets of prints are prepared, does not cause cracking and toner filming, can allow good transfer properties and cleaning properties to be maintained, and can realize stable preparation of toner images having a high quality free from image defects such as lack of text image. In the intermediate transfer member, an elastic layer is provided on the outer circumference of a resin substrate, and a surface layer is provided on the elastic layer. The surface layer has a thickness of 0.5 nm or more but 1000 nm or less and comprises an intermediate layer and a hard layer composed mainly of a metal oxide. The layer density of the hard layer is 2.07 g/cm | 08-25-2011 |
| 20110206423 | IMAGE FORMING APPARATUS - An image forming apparatus includes: a first image carrier; a first image forming unit that forms an image; an intermediate transfer belt; a primary transfer unit that primarily transfers the image onto the intermediate transfer belt; a secondary transfer unit that secondarily transfers the image transferred further onto a recording medium; a second image carrier that transfers the image onto the recording medium; a second image forming unit that forms an image on the second image carrier; a direct transfer unit that directly transfers the image onto the recording medium; a recording medium carriage belt, and a driving roller that drives the recording medium carriage belt; a speed fluctuation detecting unit; and a drive control unit that controls driving of the driving roller so as to reduce the cyclic speed fluctuation of the carriage belt based on a detection result of the speed fluctuation detecting unit. | 08-25-2011 |
| 20110243618 | IMAGE FORMING APPARATUS - An image forming apparatus including: an endless belt; a steering roller for supporting the endless belt and correcting a deviating motion of the endless belt; and a conveying section for conveying a recording material, wherein the conveying section has a position control mechanism of a recording material, and said mechanism conveys the recording material along a conveyance reference, established at a predetermined position in a width direction of the recording material, said width direction is perpendicular to a conveying direction of the recording material, wherein the steering roller is configured to be supported on a supporting point at a side on which the conveyance reference is established, and to be tilted at a side which is opposite to the side on which the conveyance reference is established, with respect to the width direction of the recording material. | 10-06-2011 |
| 20110249994 | CONDUCTIVE COMPOSITION, ELECTROPHOTOGRAPHIC BELT, IMAGE FORMING APPARATUS, AND METHOD OF MANUFACTURING CONDUCTIVE COMPOSITION - A conductive composition including a matrix resin comprising a thermoplastic resin, a conductive agent comprising a carbon black having an amine value of 1 to 100 mgKOH/g, and a stiffening agent comprising an acid anhydride, a carboxylic acid, or a compound having an epoxy group. | 10-13-2011 |
| 20110249995 | CONDUCTIVE BELT AND ELECTROPHOTOGRAPHIC APPARATUS - Concerned with a cylindrical conductive belt for electrophotography which has made permanent curl less occur. The conductive belt has a continuous phase containing a thermoplastic polyester resin and discontinuous phases each containing any one or both selected from a polyether-ester amide and a polyether amide, and the discontinuous phases are present in such way as to extend in the peripheral direction of the belt; the belt having a crystallinity that is lower on the outer-peripheral surface side than on the inner-peripheral surface side. | 10-13-2011 |
| 20110255909 | IMAGE FORMING APPARATUS - The image forming apparatus includes an endless and movable transfer material bearing belt, a transfer member, an opposing member and a belt guide member, wherein a conveyance direction of the transfer material in a first area is substantially the same as a conveyance direction of the transfer material in a second area, the first area corresponding to a nip area formed by the opposing member and the transfer member and the second area corresponding to an area in which the belt guide member bringing the transfer material bearing belt and the image bearing belt come into contact with each other. By the virtue of the present invention, a transfer material is restrained from scraping off the leading end of a toner image before the leading end of the toner image enters a transfer nip portion, while suppressing spattering of the toner image on the upstream of the transfer nip portion. | 10-20-2011 |
| 20110305487 | INTERMEDIATE TRANSFER BELT AND IMAGE-FORMING APPARATUS - An intermediate transfer belt has an elastic layer and a modified layer formed by a surface-modifying treatment of a surface of the elastic layer, wherein the surface of the elastic layer with the modified layer has a surface hardness of 0.01 GPa or more and exhibits 50 nm or more of displacement at the time of pushing the surface at a load of 20 μN by means of a cube corner tip having a tip sharp angle of 90 degree. | 12-15-2011 |
| 20110318069 | IMAGE FORMING APPARATUS - The present invention provides an image forming apparatus having a space-saving configuration in a height direction wherein an optimal contact region between the intermediate transfer belt and the sheet member can always be secured despite repeated reductions and increases in pressure force. The image forming apparatus includes: a transfer device transferring a toner image to an endless rotatable transfer belt, the transfer device having a sheet member, one end of which is fixed and the other end of which contacts with an inner peripheral surface of the transfer belt; and a pressing member for pressing the sheet member to the transfer belt; and a moving unit moving the pressing member to a first pressing position where the pressing member presses the sheet member and a second pressing position which is located farther away from a part of the sheet member pressed by the pressing member than the first pressing position. | 12-29-2011 |
| 20120003017 | IMAGE FORMING APPARATUS - An image forming apparatus includes a plurality of image bearing members, a developing unit, an intermediate transfer belt, a secondary transfer body, and a registration roller. A linear speed difference between the intermediate transfer belt and the secondary transfer body is variably set based on a basis weight of a recording medium. | 01-05-2012 |
| 20120014724 | INTERMEDIATE TRANSFER MEMBER - In order to provide a highly durable intermediate transfer member utilized for an electrophotographic image forming apparatus, with which generation of rubbing scratches and cracks is suppressed, and no filming is generated, and a method of manufacturing the intermediate transfer member, disclosed is an intermediate transfer member for an electrophotographic image forming apparatus, possessing a support and provided thereon, an elastic layer and a surface layer in this order, wherein the elastic layer has an elastic modulus of 10-200 MPa, and the thickness thereof is 50 μm to 500 μm. | 01-19-2012 |
| 20120027473 | INTERMEDIATE TRANSFER MEMBER - An excellent intermediate transfer member which, even when used for printing on a plurality of sheets, does not crack to thereby cause image defects and can retain satisfactory cleaning ability without suffering toner filming, and with which high-quality printed images free from fog caused by toner filming are continuously obtained. The intermediate transfer member is for use in an image-forming device having a means of first transferring a toner image deposited on the surface of an electrophotographic photoreceptor to an intermediate transfer member and then secondly transferring the toner image from the intermediate transfer member to a receiving material. The intermediate transfer member comprises a resin base, and formed on the periphery thereof, an elastic layer and a surface layer, the surface layer being composed of an interlayer and a rigid layer, the interlayer being a layer having a lower hardness and a lower modulus than the rigid layer. | 02-02-2012 |
| 20120027474 | Image Forming Apparatus with Multiple Driving Units - An image forming apparatus that includes: a sheet conveying belt that conveys a sheet to a position opposed to an image carrier; a cleaning unit that cleans the sheet conveying belt; a first driving unit that drives the sheet conveying belt; a second driving unit that drives the cleaning unit, the second driving unit being independent from the first driving unit; and a sheet conveying mechanism that conveys the sheet separately from the sheet conveying belt, wherein the second driving unit drives at least a part of the sheet conveying mechanism. | 02-02-2012 |
| 20120076553 | BELT DEVICE AND IMAGE-FORMING APPARATUS - A belt device for an image forming apparatus includes an endless belt member supported at roller members, side frames disposed along sides of the belt member being respectively slidably supported at slide rails disposed at a body of the image forming apparatus, a rear frame constructed across the side frames, rotatably supporting shafts of the roller members at the rear side, a front frame rotatably supporting shafts of the roller members at the front side, and having a projecting surface smaller than an inner periphery of the belt member, and a support frame cantilever-supporting the front frame with respect to the rear frame. The rear frame includes a freely detachable holding member supporting rear side bearings supporting the rear side shafts of support rollers supporting the belt and a sub-bearing which is more to the center side in an axial direction of the support rollers than the rear side bearing. | 03-29-2012 |
| 20120082490 | IMAGE FORMING APPARATUS - An image forming apparatus includes a first conveyance path to guide a print medium from a pickup unit to a pair of conveyance rollers and a second conveyance path to guide the print medium from the conveyance rollers to a transfer device. The first conveyance path and the second conveyance path are curved in opposite directions so as to reduce vertical heights of the first and second conveyance paths and consequently, reduce a height of a main body of the image forming apparatus. | 04-05-2012 |
| 20120114398 | Image forming apparatus - An image forming apparatus includes a photosensitive body on which a visible image is developed by developer, an intermediate transfer belt to which developer of the photosensitive body is transferred, and a first transfer roller to transfer the developer from the photosensitive body to the intermediate transfer belt, wherein since a developing unit housing at which the photosensitive body is mounted is provided with position regulating guides to support a shaft of the first transfer roller, the intermediate transfer belt comes into contact with the photosensitive body at a uniform angle. As a result, uniform print quality may be obtained. | 05-10-2012 |
| 20120128392 | IMAGE FORMING APPARATUS FOR TRANSFERRING TRANSFER RESIDUAL TONER ONTO IMAGE BEARING MEMBER - A charge member charges secondary transfer remaining toner on an intermediate transfer member to a polarity opposite to a normal charge polarity. The remaining toner is moved by a transfer bias, from the intermediate transfer member onto an image bearing member. A BK station is arranged on the downstream of other stations. In a continuous BK monochromatic mode, by applying a reverse bias to transfer portions of the other stations and applying the transfer bias only to the BK station, remaining toner can be collected into the BK station (simultaneously with the transfer). In a full-color mode, remaining toner is collected into the station on the uppermost stream. Thus, the image bearing member for collecting remaining toner on the intermediate transfer member differs according to the mode, thereby suppressing the collection of remaining toner being concentrated on one image bearing member. | 05-24-2012 |
| 20120148316 | SILANE-CONTAINING POLYAMIDEIMIDE INTERMEDIATE TRANSFER MEMBERS - An intermediate transfer member including a first supporting substrate layer, and a second layer of a silane-containing polyamideimide, and a filler component. | 06-14-2012 |
| 20120189359 | PRINTING APPARATUS AND PRINTING METHOD - A printing apparatus employs a photosensitive drum for forming a latent image on a surface region thereof, a developing unit for forming a protrusion by selectively causing ink repellent particles to adhere onto the surface region carrying the latent image formed thereon, an ink roller for feeding ink to the protrusion on the surface of the photosensitive drum, a blanket cylinder for receiving the ink from the projected region, an impression cylinder for pressing the ink on the surface of the blanket cylinder when the ink is transferred onto a sheet of paper, and a conveying unit for conveying the sheet of paper. The surface of the ink repellent particles has a property of repelling the ink, while the surface of the photosensitive drum has a property of not repelling the ink. | 07-26-2012 |
| 20120201578 | INTERMEDIATE TRANSFER BELT, IMAGE FORMING APPARATUS, AND METHOD FOR PRODUCING INTERMEDIATE TRANSFER BELT - An intermediate transfer belt configured to receive a toner image formed by developing, with a toner, a latent image on an image bearing member, the intermediate transfer belt including a base layer and an elastic layer laid on the base layer, wherein the elastic layer includes spherical resin particles and a layer formed of an elastic body, and has a concavo-convex pattern in a surface of the elastic layer, wherein the spherical resin particles are arranged in a plane direction in the surface of the elastic layer, and wherein the intermediate transfer belt has glossiness of 35% or higher as determined based on reflected light at 85° on the surface of the intermediate transfer belt. | 08-09-2012 |
| 20120207522 | IMAGE FORMING APPARATUS - An area in which a sheet member and an intermediate transfer belt are in contact with each other is provided between an intersection between a guide surface of the second guide portion configured to guide a recording material toward the intermediate transfer belt and the intermediate transfer belt and a nip portion. | 08-16-2012 |
| 20120213560 | IMAGE FORMING APPARATUS - An image forming apparatus includes a shaft rotatably supporting a supporting member on a supporting unit to allow switching while maintaining the supporting unit, between a first state in which first and second members contact an intermediary transfer belt in a first image forming mode, and a second state in which the first transfer member contacts the belt and the second transfer member is spaced from the belt, in a second image forming mode. The supporting shaft is disposed in a range which is downstream of a central portion of the first transfer member which is disposed downstreammost with respect to a moving direction of the belt and which is remote from a surface of the belt beyond a plane including the central portion of the first transfer member and parallel with a surface of the belt facing the first transfer member. | 08-23-2012 |
| 20120230740 | INTERMEDIATE TRANSFER BELT AND IMAGE FORMING APPARATUS USING THE SAME - An intermediate transfer belt including: a base layer; and an elastic layer, the elastic layer being laid on the base layer to form a laminated structure, wherein the elastic layer is an acrylic rubber-elastic layer with flame retardancy where the acrylic rubber-elastic layer has VTM-0 grade according to the UL94VTM burning test, wherein the elastic layer has a Martens hardness of 0.2 N/mm | 09-13-2012 |
| 20120230741 | IMAGE FORMING APPARATUS - An image forming apparatus includes a movable belt; a transfer member opposed to the image bearing member with the belt therebetween; wherein the transfer member has a contact surface substantially parallel with a surface of the belt and contacted to the belt, and wherein when the belt is moving, the belt rubs the contact surface, and a toner image is transferred from such a part of image bearing member as is opposed to the contact surface; and a supporting member for supporting the transfer member, the supporting member being swingable. | 09-13-2012 |
| 20120251196 | IMAGE FORMING APPARATUS - There are provided shielding components that are located between supporting portions which pivotally support transfer rollers which are located facing photosensitive drums and a rear surface of an intermediate transfer belt, and that are also located also on both sides of a direction which orthogonally intersects the direction of movement of the intermediate transfer belt, and that are also fixed to the supporting portions. | 10-04-2012 |
| 20120251197 | TRANSFER BELT UNIT AND IMAGE FORMING APPARATUS - A transfer belt unit satisfies the following conditions. An intermediate transfer belt has a thickness not less than 100 micrometers and not more than 200 micrometers, a tension not less than 80 N/m and not more than 180 N/m, and a tensile elastic modulus not less than 1000 megapascals and not more than 2000 megapascals. A secondary-transfer bias roller has an Asker C hardness not less than 35 degrees and not more than 50 degrees. Stretching rollers for stretching the intermediate transfer belt have an outer diameter not less than 6 millimeters. | 10-04-2012 |
| 20120263507 | COOLING STRUCTURE, IMAGE FORMING APPARATUS HAVING COOLING STRUCTURE, AND ELECTRONIC APPARATUS HAVING COOLING STRUCTURE - A disclosed cooling structure includes a casing including a bottom plate arranged in a bottom portion of the casing and having a through hole formed in the bottom plate; a heat source to be cooled accommodated in the casing; a suctioning unit configured to suction outer air from an outside of the casing to an inside of the casing via the through hole in the bottom plate; an open and close member including an outer air path for carrying the suctioned outer air and being capable of opening and closing relative to the casing; and an outer air applying unit configured to cool the heat source by the carried outer air received from the open and close member. | 10-18-2012 |
| 20120269557 | IMAGE FORMING APPARATUS - An image forming apparatus includes: an image bearing member for bearing a toner image; a belt for conveying the toner image; and a transfer device for rubbing the belt, and a surface of the transfer device, which is brought into contact with the belt includes linear concave portions or linear convex portions. The image forming apparatus of the present invention prevents a friction force between the belt and the transfer device rubbing the belt from increasing and brings a transfer member into a stable contact with the belt for conveying the toner image, thereby suppressing increase in drive torque of the belt which rubs the transfer device and suppressing occurrence of image failure. | 10-25-2012 |
| 20120282001 | IMAGE FORMING APPARATUS - A first transfer inner roller and a first transfer outer roller are arranged such that the leading edge of a recording material is pressed against an intermediate transfer member on the downstream side of an upstream side transfer portion to change a traveling direction of the recording material. | 11-08-2012 |
| 20120294658 | INTERMEDIATE TRANSFER BLANKET AND INTERMEDIATE TRANSFER BODY FOR ELECTROPHOTOGRAPHIC PRINTING - Each of an intermediate transfer blanket and an intermediate transfer body for electrophotographic printing uses liquid toner for transferring the liquid toner in which toner particles formed by a thermoplastic material and a pigment are distributed and mixed in a petroleum solvent in the liquid toner, and a conducting layer that is formed by urethane rubber is provided on a front surface of a blanket, thereby realizing high-quality electrophotographic printing. | 11-22-2012 |
| 20120301191 | IMAGE FORMING APPARATUS - An image forming apparatus includes a developer image bearing body that bears a developer image formed of a developer. The developer image bearing body has roughness-imparting particles on a surface thereof. A mean particle diameter d of the roughness-imparting particles and a mean particle diameter D of the developer satisfy a relationship: (½)×D| 11-29-2012 | |
| 20120321357 | IMAGE FORMING APPARATUS INCLUDING HEAT TRANSMISSION MEMBER - An image forming apparatus for transferring and superimposing toner images formed on plural image bearers onto an endless intermediate transfer member in an electric field created between the plural image bearers and plural semi conductive transfer members internally contacting the endless intermediate transfer member. The image forming apparatus includes a heat generating member arranged inside the intermediate transfer member to generate heat. A heat transfer member is provided to transfer the heat to the plural semi conductive transfer members. | 12-20-2012 |
| 20130011170 | SLIDING MEMBER AND METHOD OF PRODUCING THE SAME - Provided is a sliding member having excellent adhesion and slidability suitable for use as a transfer pad in an image forming apparatus. A sliding member ( | 01-10-2013 |
| 20130028641 | IMAGE FORMING APPARATUS - An image forming apparatus includes multiple image forming stations, and a controller for executing selectively a multi-color image mode or a monochromatic image forming mode, wherein in the monochromatic image forming mode, a first one of image forming stations which forms the image, and a second one which is upstream of the first image forming station exposes the image bearing members to a first image pattern and a second image pattern, respectively, and the controller determines the second image pattern in accordance with the first image pattern, and effects the exposure to the second image pattern. | 01-31-2013 |
| 20130149016 | HYDROPHOBIC FLUORINATED NANO DIAMOND CONTAINING INTERMEDIATE TRANSFER MEMBERS - An intermediate transfer media, such as a belt, that includes a fluorinated nano diamond of a fluorinated shell that encapsulates a synthetic diamond core with the shell containing at least 15 weight percent of graphite. | 06-13-2013 |
| 20130189002 | TRANSFER DEVICE AND IMAGE FORMING APPARATUS USING SAME - A transfer device includes a plurality of rollers, a rotatable intermediate transfer belt wound around and stretched between the rollers, a transfer member disposed in the inner loop of the belt and facing an image bearing member of an image forming apparatus disposed at an outer circumference of the belt, to transfer an image formed onto the surface of the image bearing member when contacting the intermediate transfer belt, and a position adjuster to adjust the position of the intermediate transfer belt at different positions relative to the image bearing member. The positions include a contact state in which the intermediate transfer belt applied with a predetermined tension contacts the image bearing member, a first separation state in which the tensioned intermediate transfer belt separates from the image bearing member, and a second separation state in which the intermediate transfer belt separates further away from the image bearing member. | 07-25-2013 |
| 20130302071 | INTERMEDIATE TRANSFER MEMBER COMPRISING AN INORGANIC LAYER, AND IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS EMPLOYING THEREOF - An image forming apparatus may include an electrophotographic photoreceptor and an intermediate transfer member. An image may be formed by primary transferring a toner image held on a surface of an electrophotographic photoreceptor to an intermediate transfer member, and secondary transferring the toner image from the intermediate transfer member to a transferee material. A dispersive component of surface energy of the electrophotographic photoreceptor and a dispersive component of surface energy of the intermediate transfer member may satisfy a relationship of (the dispersive component of surface energy of the electrophotographic photoreceptor)≦(the dispersive component of surface energy of the intermediate transfer member). | 11-14-2013 |
| 20140044461 | POLYAMIC ACID COMPOSITION, POLYIMIDE ENDLESS BELT AND MANUFACTURING METHOD THEREOF, AND IMAGE FORMING APPARATUS - The present invention provides a polyamic acid composition in which carbon black with a pH value approximately 7 or less is dispersed in a solution comprising a polyamic acid represented by Formula (1) having amino groups at molecular terminal ends thereof, and a solvent. | 02-13-2014 |
| 20140079446 | BIARYL POLYCARBONATE INTERMEDIATE TRANSFER MEMBERS - An intermediate transfer member that includes biaryl polycarbonates, an optional polysiloxane, and an optional conductive filler component. | 03-20-2014 |
| 20140086643 | IMAGE FORMING APPARATUS - An image forming apparatus includes a first transportation unit for transporting a medium; a second transportation unit including a first transportation member and a second transportation member disposed on both sides of a transportation path of the medium on a downstream side of the first transportation unit in a transportation direction of the medium for transporting the sheet supplied from the first transportation unit; and a medium guiding portion disposed between the first transportation unit and the second transportation unit for guiding the medium supplied from the first transportation unit toward the second transportation unit. The medium guiding portion includes a guide surface formed to face the transportation path for guiding the medium toward the first transportation member of the second transportation unit. | 03-27-2014 |
| 20140169844 | IMAGE FORMING APPARATUS - An image forming apparatus may include a first and second mode. In the first mode, the image forming apparatus uses a second charging member to charge toner that remains on an intermediate transfer member and then transfers the charged, remaining toner to an image carrier in a primary transfer portion. In the second mode, the image forming apparatus transfers the remaining toner adhered to the second charging member in the first mode to the intermediate transfer member. Also in a second mode, the image forming apparatus controls so that a surface potential of the image carrier that reaches the primary transfer portion at a timing at which the remaining toner transferred to the intermediate transfer member passes through the primary transfer portion has a same polarity as that of a surface potential of the image carrier in the first mode and also has an absolute value smaller than that thereof. | 06-19-2014 |
| 20140341619 | TRANSFER DEVICE AND IMAGE FORMING APPARATUS - A transfer device includes an intermediate transfer belt, and a plurality of intermediate transfer rollers. A most upstream side intermediate transfer roller which is located most upstream in a moving direction of the intermediate transfer belt has a rotational axis arranged downstream from a rotational axis of a most upstream side photoreceptor drum which is located most upstream in the moving direction of the intermediate transfer belt when the most upstream side intermediate transfer roller is in its pressing position, while a most downstream side intermediate transfer roller which is located most downstream in the moving direction of the intermediate transfer belt has a rotational axis arranged upstream from a rotational axis of a most downstream side photoreceptor drum which is located most downstream in the moving direction of the intermediate transfer belt when the most downstream side intermediate transfer roller is in its pressing position. | 11-20-2014 |
| 20140369722 | METHOD OF FORMING A RELEASE LAYER - A method of forming a silicone release layer on a substrate, for an intermediate transfer member of a digital offset printing system, the method including:
| 12-18-2014 |
| 20150037075 | IMAGE FORMING APPARATUS - It has been difficult to ensure satisfactory secondary transfer performance while ensuring satisfactory primary transfer performance by passing a current in the circumferential direction of an intermediate transfer belt from a current supply member. | 02-05-2015 |
| 20150125189 | BELT ASSEMBLY AND IMAGE FORMING APPARATUS INCLUDING SAME - A belt assembly includes a belt, a plurality of support rollers, and a shaft-end retainer. The belt is formed into an endless loop, entrained about and stretched taut between the plurality of support rollers with a rotary shaft. The plurality of support rollers includes a first support roller and a second support roller. The shaft-end retainer including a first retainer and a second retainer is disposed at each end of the rotary shaft of the plurality of support rollers. The first retainer detachably holds an end of the rotary shaft of the first support roller. The second retainer detachably holds an end of the rotary shaft of the second support roller and includes a second-retainer opening from which the end of the rotary shaft of the second roller is detachable from and attachable to the second retainer in a direction perpendicular to the rotary shaft of the second support roller. | 05-07-2015 |
| 20150139704 | Image Forming Apparatus - Image forming apparatus includes: main body casing having first and second side walls opposite to each other, and upper portion having opening; top cover swingably supported on the upper portion of the main body casing at a position near the second side wall and configured to openably close the opening; endless belt disposed below the top cover and having first end portion closer to the first side wall and second end portion closer to the second side wall; photoconductor drum disposed under the endless belt; development unit disposed under the photoconductor drum and configured to supply developer to the photoconductor drum; and fixing device disposed above the second end portion of the endless belt. The endless belt is configured to be swingable about axis of rotation provided near the second side wall such that the first end portion of the endless belt is swingable in an upper-lower direction. | 05-21-2015 |
| 20150301484 | CONVEYOR SYSTEM AND IMAGE FORMING APPARATUS INCLUDING SAME - A conveyor system includes a first conveyor belt entrained about a separation roller and a support roller disposed upstream from the separation roller, a second conveyor belt entrained about a first roller disposed at an uppermost stream in a transport direction of a sheet-type medium and a second roller disposed downstream therefrom, a belt alignment device to tilt a rotary shaft of the separation roller to restrict a range of belt mistracking of the first conveyor belt in a width direction thereof within a predetermined range, and a restriction member to restrict an amount of inclination of the rotary shaft such that a hypothetical extended plane, which is a hypothetical extension of the outer circumferential surface of the first conveyor belt between the separation roller and the support roller to a downstream side in the transport direction, does not contact a rotational center axis of the first roller. | 10-22-2015 |
| 20150316874 | IMAGE FORMING APPARATUS - A voltage maintenance element is connected to a contact member that contacts a primary transfer surface area of an intermediate transfer belt to which toner images are transferred from a plurality of image carriers between stretch members, in such a way as to prevent the electric potential of the intermediate transfer belt from varying between respective stations. | 11-05-2015 |
| 20160091839 | TRANSFER DEVICE AND IMAGE FORMING APPARATUS - An image forming apparatus includes at least one image carrier that carries a toner image, an intermediate transfer body that is rotatable and that faces the image carrier, an opposing member that is positioned upstream of a second transfer section in a rotation direction of the intermediate transfer body and that faces the intermediate transfer body, and a voltage application unit that applies an AC voltage, whose polarity reverses, and forms an AC electric field between the intermediate transfer body and the opposing member. A first transfer section in which the toner image on the image carrier is transferred onto a surface of the intermediate transfer body is formed. The second transfer section that is positioned downstream of the first transfer section in the direction of rotation of the intermediate transfer body and in which the toner image on the intermediate transfer body is transferred onto a medium is formed. | 03-31-2016 |
| 20160116865 | IMAGE FORMING APPARATUS - In a constitution in which a power source exclusively for primary-transfer is omitted and a predetermined voltage is generated in an intermediary transfer member, in a test mode in which a test voltage is applied to a secondary-transfer member in advance in order to obtain a proper secondary transfer voltage, in the case where the test voltage is low, a proper secondary-transfer voltage cannot be obtained in some cases. In a period of the test mode, the power source is controlled in order to maintain a Zener breakdown voltage, so that the proper secondary-transfer voltage can be obtained. | 04-28-2016 |
| 20160124351 | INTERMEDIATE TRANSFER MEMBERS - An intermediate transfer member that contains a mixture of a polyimide, an optional conductive component, and a fluoroaliphatic phosphate. | 05-05-2016 |
| 20160378023 | TRANSFER DEVICE AND IMAGE FORMING APPARATUS - A transfer device includes a belt-shaped body and at least one transfer surface forming member. At least one image held by at least one image holding body is transferred to the belt-shaped body. The belt-shaped body is moved so as to be rotated in a single direction. The at least one transfer surface forming member has an outer radius, has a central portion and one and another end portions in a direction perpendicular to a movement direction of the belt-shaped body, and forms a transfer surface so as to cause the belt-shaped body to be in contact with the at least one image holding body. The outer radius of the at least one transfer surface forming member is larger at the central portion than at the one and the other end portions. | 12-29-2016 |
| 20190146381 | ELECTRICAL DISCHARGE SURFACE TREATMENT | 05-16-2019 |
| 20190146382 | BARRIER MEMBERS FOR USE IN AN ELECTROGRAPHIC PRINTER | 05-16-2019 |
