Patent application number | Description | Published |
20100080615 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus includes an electrophotographic photosensitive drum; a developing cartridge including a developing roller for developing a latent image formed on the drum, a developer accommodating portion for accommodating a developer to be used by the developing roller to develop the electrostatic latent image, and a developing roller shutter movable between a protecting position for covering a part of a peripheral surface of the developing roller and a retracted position, retracted from the protecting position, for exposure the part of the peripheral surface of the developing roller, wherein the developing cartridge is detachably mountable to a main assembly of the apparatus; a cartridge supporting member movable, while detachably mounting the developing cartridge, between an inside position which is inside of the main assembly of the apparatus to Mount the developing cartridge to the main assembly of the apparatus and an outside position which is outside of the main assembly of the apparatus to remove the developing cartridge from the main assembly of the apparatus; a force receiving portion, provided on the developing cartridge, for receiving a force for moving the developing roller shutter from the protecting position to the retracted position; and a force applying portion provided in the main assembly of the apparatus, wherein when the cartridge supporting member is moved from the outside position to the inside position, the force receiving portion contacts to the force applying portion to move the cartridge supporting member from the outside position to the inside position, in interrelation with which the force receiving portion contacted to the force applying portion receives the force from the force applying portion, thus moving the developing roller shutter from the protecting position to the retracted position. | 04-01-2010 |
20100135691 | COLOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A color electrophotographic image forming apparatus having an apparatus main body to which a plurality of cartridges are detachably mounted adjacently in one direction for forming a color image on a recording medium, wherein each of the plurality of cartridges has a gripping portion disposed on a rear end of the corresponding cartridge in a mounting direction in which the cartridge is mounted to the apparatus main body, the gripping portion being protruding from the rear end to an upstream side, wherein when the corresponding cartridge is mounted to and detached from the apparatus main body, a user grips the gripping portion, and wherein in a state in which the plurality of cartridges are mounted to the apparatus main body, at least one gripping portion is disposed out of line with a gripping portion of an adjacent cartridge in a direction orthogonal to the mounting direction. | 06-03-2010 |
20100158559 | COLOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A color electrophotographic image forming apparatus in which a plurality of cartridges are detachably mounted to an apparatus main body to form an image on a recording medium, including: a cartridge supporting member, which moves between an inside position that is positioned inside the apparatus main body and a pullout position pulled out from the inside position to an outside of the apparatus main body, while detachably supporting the plurality of cartridges; in which the plurality of cartridges are arranged side-by-side and supported on the cartridge supporting member so that a longitudinal direction of each of the plurality of cartridges is orthogonal to a pullout direction in which the cartridge supporting member moves from the inside position to the pullout position, and a cartridge, which is heaviest among the plurality of cartridges, is supported most upstream in the pullout direction. | 06-24-2010 |
20100202797 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus for forming an image on a transfer member, includes a main assembly of the electrophotographic image forming apparatus which is provided with a transfer member for transferring a developer image onto the transfer member; a supporting member movable between an inside position which is for supporting an electrophotographic photosensitive member on which the developer image is to be formed and which is inside the main assembly, and an outside position which is outside the main assembly; and a contacting and spacing member movable between a first position for spacing the electrophotographic photosensitive member from the transfer member in the state that the supporting member is in the inside position, and a second position for contacting the electrophotographic photosensitive member to the transfer member, the contacting and spacing member being provided in the supporting member. | 08-12-2010 |
20100239308 | COLOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A color electrophotographic image forming apparatus includes an image forming unit including a transfer member for transferring a developed image formed on an electrophotographic photosensitive drum onto the recording material, and mounting portions for demountably mounting cartridges arranged substantially in a vertical direction, the unit being movable, in a state that the cartridge is demountably mounted to the mounting portions, between a transfer position for transferring the developed image from the transfer member onto the recording material in a main assembly of the apparatus, and a mounting and demounting position, different from the transfer position, for mounting and demounting the cartridges relative to the mounting portion; a first path for mounting and demounting the cartridge relative to such a mounting portion of the mounting portions as is provided at a topmost position; and a second path, different from the first path, for mounting and demounting the cartridge relative to the mounting portion. | 09-23-2010 |
20100239311 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus includes an image forming unit including a transfer member for transferring a developed image formed on an electrophotographic photosensitive drum, and a mounting portion for demountably mounting a cartridge, the image formation unit being movable, in a state that the cartridge is demountably mounted to the mounting portion, between a transfer position for transferring the developed image from the transfer member onto the recording material in a main assembly of the apparatus, and a mounting and demounting position, different from the transfer position, for mounting and demounting the cartridge relative to the mounting portion; and a regulating member for limiting movement, outward of the unit, of the cartridge mounted to the mounting portion, when the unit moves between the transfer position and the mounting and demounting position, the regulating member being movable between a regulating position for limiting the movement, outward of the unit, of the cartridge, and a permitting position for permitting mounting and demounting of the cartridge relative to the mounting portion, and the regulating member being in a regulating position when the unit moves between the transfer position and the mounting and demounting position. | 09-23-2010 |
20100239312 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus for forming an image on a recording material, includes an electrophotographic photosensitive drum; a cartridge including a developing roller for developing an electrostatic latent image formed on the electrophotographic photosensitive drum, the cartridge containing a developer for effecting development and including a force receiving portion, wherein the cartridge is mounted to a main assembly of the electrophotographic image forming apparatus; and an urging member for urging the cartridge; wherein by mounting the cartridge, the force receiving portion receives a force from the urging member to urge the developing roller to the electrophotographic photosensitive drum. | 09-23-2010 |
20100247138 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus, in which a drawer supporting a cartridge is mounted in an apparatus main body, and an impact when a drawer is mounted into the apparatus main body may be suppressed to prevent a developer from scattering within a developer container. The drawer supporting the cartridge is movable between an inside position in the apparatus main body and a pullout position at which the cartridge is mounted and removed. On a forward side of the inside position, a force giving portion for giving a force to the drawer in a direction opposite to a mounting direction is provided. The force giving portion gives the force gradually to the drawer along with movement of the drawer in the mounting direction. With this structure, it is possible to suppress the scattering of the developer in the cartridge caused by the impact on mounting. | 09-30-2010 |
20100247140 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An image forming apparatus for forming an image on a sheet includes a transfer member for transferring a developed image formed on an electrophotographic photosensitive drum onto the sheet; a cartridge mounting portion for demountably mounting a cartridge accommodating the developer; an image forming unit movable, relative to a main assembly of the apparatus in a state that the cartridge is mounted to the mounting portion, between an image forming position for effecting image formation and a mounting and demounting position, away from the image formation position, for mounting and demounting the cartridge to the mounting portion; a cleaning member for removing a developer remaining on a surface of the drum; a residual developer container, demountably mounted to the image forming unit, for accommodating the developer removed by the cleaning member; wherein the residual developer container and the cartridge are detachably mountable individually relative to the image forming unit when the image forming unit is placed in the mounting and demounting position. | 09-30-2010 |
20100247142 | COLOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A color electrophotographic image forming apparatus for forming a color image on a recording material, the apparatus includes an image forming unit rotatable relative to a main assembly of the color electrophotographic image forming apparatus, the image forming unit including a plurality of mounting portions for demountably mounting cartridges each provided with a developing member for developing an electrostatic latent image formed on an electrophotographic photosensitive member drum with a developer, and a transfer member for transferring the developed image on the recording material, wherein the image forming unit is rotatable between a transfer position for transferring the developed image from the transfer member onto the recording material and a mounting and demounting position, different from the transfer position, for mounting and dismounting the cartridge relative to the mounting portion in a state in which cartridges containing different color developers are mounted to the mounting portion; and a grip portion usable for rotating the image forming unit between the transfer position and the mounting and demounting position. | 09-30-2010 |
20110033201 | IMAGE FORMING APPARATUS AND CARTRIDGE - An image forming apparatus for forming an image on a recording material includes a cartridge accommodating a developer for developing an electrostatic latent image formed on a photosensitive member, a supporter detachably mounting the cartridge, and a preventor. The supporter moves between an inside position where the cartridge forms an image inside a main assembly of the apparatus and an outside position where the cartridge is mounted and demounted outside the main assembly. The preventor moves between a first position in which it prevents, when the cartridge is not mounted, movement of the supporter from the outside position to the inside position by contacting a portion thereof, and a second position, retracted from the first position, in which the it permits, when the cartridge is mounted, the movement of the supporter from the outside position to the inside position. | 02-10-2011 |
20110142490 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus for forming an image on a recording material, the apparatus includes a plurality of electrophotographic photosensitive drums; a cartridge which contains a developer and which is detachably mountable to a main assembly of the apparatus of the electrophotographic image forming apparatus in a direction perpendicular to an axis of the electrophotographic photosensitive drum; a cartridge mounting portion for mounting the cartridge; a plurality of cleaning members for removing the developers remaining on surfaces of the electrophotographic photosensitive drums; a removed-developer accommodating container for accommodating the developers removed by the cleaning members, the removed-developer accommodating container being detachably mountable to the main assembly of the apparatus in a direction perpendicular to the axial direction, wherein the cartridges are disposed along a second direction, and the removed-developer accommodating container are adjacent to the cartridges and extends along the second direction so as to be overlapped at least partly with the cartridges as seen in the axial direction. | 06-16-2011 |
20110158681 | UNIT AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A unit detachably mountable to a main assembly of an image forming apparatus including an openable member capable of opening and closing a unit mounting and demounting opening includes: a grip portion, provided rotatably about a rotational shaft on a side wall of a frame of the unit, being rotatably moved to a projected position in which the grip portion is projected from the side wall and to a retracted position in which the grip portion is retracted in a longitudinal direction so as to be closer to the side wall than the projected position; and a force receiving portion at which the grip portion located at the projected position receives a force from the openable member when the openable member is closed in a state in which the unit is mounted in the main assembly, the force receiving portion being configured to receive the force for rotating the grip portion from the projected position to the retracted position. | 06-30-2011 |
20110164897 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A downsized electrophotographic image forming apparatus with which a drawer member mounting a photosensitive drum and a developing unit is mounted into a main assembly of the apparatus, and the developing roller and the photosensitive drum can be contacted and spaced relative to each other is provided. It includes a process cartridge, a main assembly of the apparatus, and a drawer member | 07-07-2011 |
20110249985 | COLOR ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A color electrophotographic image forming apparatus having an apparatus main body to which a plurality of cartridges are detachably mounted adjacently in one direction for forming a color image on a recording medium, wherein each of the plurality of cartridges has a gripping portion disposed on a rear end of the corresponding cartridge in a mounting direction in which the cartridge is mounted to the apparatus main body, the gripping portion being protruding from the rear end to an upstream side, wherein when the corresponding cartridge is mounted to and detached from the apparatus main body, a user grips the gripping portion, and wherein in a state in which the plurality of cartridges are mounted to the apparatus main body, at least one gripping portion is disposed out of line with a gripping portion of an adjacent cartridge in a direction orthogonal to the mounting direction. | 10-13-2011 |
20110305479 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus includes an opening provided in a main assembly of the apparatus; an openable member movable between a close position for closing the opening and an open position for opening it; a drawer member for supporting an electrophotographic photosensitive drum, the drawer member being movable in a direction crossing with an axis of the drum through the opening between an inside position inside the main assembly and an outside position outside the main assembly where the cartridge can be mounted and dismounted; a transfer unit movable about a rotation axis disposed downstream of the drum with respect to a mounting direction of the drawer member from the outside position to the inside position, between a contacting position contacting the drum and a spaced position spacing from the drum in a state that the drawer member is in the inside position; and an interrelating member interrelating the openable member and the transfer unit with each other, wherein the interrelating member moves the transfer unit from the contacting position to the spaced position with movement of the openable member from the close position to the open position, and moves the transfer unit from the spaced position to the contacting position with movement of the openable member from the open position to the close position. | 12-15-2011 |
20120070186 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus for forming an image on a recording medium includes a cartridge configured to store developer, a transfer member located opposite an electrophotographic photosensitive member and configured to transfer a developed image formed on the electrophotographic photosensitive member to the recording medium, a supporting member that is movable, while supporting the cartridge, between an image forming position where image formation is conducted inside an apparatus body of the electrophotographic image forming apparatus and an attachment/detachment position which is spaced away from the image forming position and where attachment/detachment of the cartridge is feasible, and a waste developer container supported so as to be attachable/detachable with respect to the supporting member, having a cleaning member configured to remove the developer from a surface of the transfer member, and configured to store the developer removed by the cleaning member. | 03-22-2012 |
20120148293 | IMAGE FORMING APPARATUS - Provided is a configuration in which a scanner is mounted to a cartridge door via an elastic member, and the scanner is positioned relative to a frame that can be mounted to and demounted from an apparatus main body and that supports an intermediate transfer member and a photosensitive member using an urging force of the elastic member. | 06-14-2012 |
20120148294 | IMAGE FORMING APPARATUS - A guide surface of an attachment guide for a cartridge attached to a position nearest to a scanner has, in the vicinity of an inlet of the attachment guide, a portion oriented so as to be away from a guide surface of a guide unit for another cartridge from the upstream toward the downstream side in the direction in which the cartridges are attached. | 06-14-2012 |
20120155917 | IMAGE FORMING APPARATUS - Provided is an image forming apparatus. The image forming apparatus is provided with guide portions to be used to mount a cartridge group including plural cartridges in the image forming apparatus. Some of the guide portions are used also to mount an alternative cartridge, which is configured to occupy two or more of plural mounting spaces, in the image forming apparatus. | 06-21-2012 |
20120195627 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus includes a cartridge detachably mountable to a main assembly of the apparatus, the cartridge including a photosensitive drum, a drum frame, a force receiving portion for receiving a driving force, and a regulated portion; a transfer member for transferring a developer image onto a toner image receiving member; a supporting member movable between an inside position, wherein the supporting member detachably supports the cartridge and an outer position, wherein the cartridge is mountable and demountable; a moving member capable of taking a first position, where the moving member urges the regulated portion to space the drum from the transfer member and a second position to contact the drum to the transfer member; and a regulating portion for engaging with the regulated portion to regulate rotation of the cartridge, and for permitting movement of the supporting member between the outer and inside positions. | 08-02-2012 |
20120213550 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus includes an image forming unit including a transfer member for transferring a developed image formed on an electrophotographic photosensitive drum, and a mounting portion for demountably mounting a cartridge, the image formation unit being movable, in a state that the cartridge is demountably mounted, between a transfer position for transferring the developed image, and a mounting and demounting position, different from the transfer position, and a regulating member for limiting movement of the cartridge mounted to the mounting portion, when the unit moves between the transfer position and the mounting and demounting position, the regulating member being movable between a regulating position for limiting the movement of the cartridge, and a permitting position for permitting mounting and demounting of the cartridge, and the regulating member being in a regulating position when the unit moves between the transfer position and the mounting and demounting position. | 08-23-2012 |
20120257908 | IMAGE FORMING APPARATUS AND CARTRIDGE - An image forming apparatus is provided for forming an image on a recording material. The apparatus includes a cartridge supporting member on which a plurality of cartridges is detachably mountable. The cartridge supporting member is movable between an inside position inside a main assembly of the image forming apparatus and an outside position outside the main assembly. A plurality of preventing members are provided movably in the main assembly, with each preventing member being movable between a first position in which each preventing member prevents movement of the cartridge supporting member from the outside position to the inside position by contacting the cartridge supporting member, and a second position, retracted from the first position, in which each preventing member permits the movement of the cartridge supporting member. | 10-11-2012 |
20120257909 | IMAGE FORMING APPARATUS AND CARTRIDGE - An image forming apparatus is provided for forming an image on a recording material. The apparatus includes a plurality of cartridges, and a cartridge supporting member including a plurality of mounting portions in which the plurality of cartridges is detachably mountable. A plurality of preventing members are each provided movably in an associated cartridge, corresponding to the plurality of mounting portions. Each preventing member is movable between a first position in which each preventing member prevents movement of the cartridge supporting member from an outside position to an inside position by contacting the main assembly, and a second position, retracted from the first position, in which each preventing member permits the movement of the cartridge supporting member. | 10-11-2012 |
20120288304 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus for forming an image on a recording material, includes an electrophotographic photosensitive drum; a cartridge including a developing roller for developing an electrostatic latent image formed on the electrophotographic photosensitive drum, the cartridge containing a developer for effecting development and including a force receiving portion, wherein the cartridge is mounted to a main assembly of the electrophotographic image forming apparatus; and an urging member for urging the cartridge; wherein by mounting the cartridge, the force receiving portion receives a force from the urging member to urge the developing roller to the electrophotographic photosensitive drum. | 11-15-2012 |
20120294646 | IMAGE FORMING APPARATUS - An image forming apparatus includes a cartridge supporting member movable between an inside position in a state of carrying a first cartridge and a second cartridge, and a drawn position in which said first cartridge and said second cartridge are mountable and demountable relative to said cartridge supporting member. The supporting member includes a first mounting portion for a first cartridge, and a second mounting portion for a second cartridge which is disposed upstream of said first mounting portion with respect to a supporting member drawing direction. A first guide portion for the first cartridge, and a second guide portion for said second cartridge, wherein a downward movement distance of said second cartridge when the cartridge is demounted from said second mounting portion is larger than that of said first cartridge. | 11-22-2012 |
20120294648 | IMAGE FORMING APPARATUS - In an image forming apparatus including a door | 11-22-2012 |
20120294649 | PHOTOSENSITIVE DRUM UNIT, ASSEMBLING METHOD THEREFOR, AND DISASSEMBLING METHOD THEREFOR - A photosensitive drum unit to which a coupling member | 11-22-2012 |
20120308264 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A developing cartridge includes an electrophotographic photosensitive member, and a developing roller for contacting the electrophotographic photosensitive member to develop an electrostatic latent image formed on the electrophotographic photosensitive member. The developing cartridge also includes a force receiving portion, projected in an axial direction of the developing roller, for receiving a force for spacing the developing roller and the electrophotographic photosensitive member. | 12-06-2012 |
20120315063 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A downsized electrophotographic image forming apparatus with which a drawer member mounting a photosensitive drum and a developing unit is mounted into a main assembly of the apparatus, and the developing roller and the photosensitive drum can be contacted and spaced relative to each other is provided. It includes a process cartridge, a main assembly of the apparatus, and a drawer member | 12-13-2012 |
20130016995 | IMAGE FORMING APPARATUSAANM Hiramatsu; DaisukeAACI Numazu-shiAACO JPAAGP Hiramatsu; Daisuke Numazu-shi JPAANM Miyamoto; JunAACI Mishima-shiAACO JPAAGP Miyamoto; Jun Mishima-shi JPAANM Nishiuwatoko; TsutomuAACI Numazu-shiAACO JPAAGP Nishiuwatoko; Tsutomu Numazu-shi JPAANM Kikuchi; KenAACI Mishima-shiAACO JPAAGP Kikuchi; Ken Mishima-shi JPAANM Suzuki; KensukeAACI Tagata-gunAACO JPAAGP Suzuki; Kensuke Tagata-gun JP - A toner storage unit provided in an image forming apparatus that enables a user to replace the toner storage unit when the user opens the door of the image forming apparatus, moves a developing cartridge in a direction corresponding to removal of the developing cartridge, and places the developing cartridge in the toner storage unit replacement position where the toner storage unit can be removed and replaced. | 01-17-2013 |
20130045026 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An image forming apparatus for forming an image on a sheet includes a transfer member for transferring a developed image formed on an electrophotographic photosensitive drum onto the sheet; a cartridge mounting portion for demountably mounting a cartridge accommodating the developer; an image forming unit movable, relative to a main assembly of the apparatus in a state that the cartridge is mounted to the mounting portion, between an image forming position for effecting image formation and a mounting and demounting position, away from the image formation position, for mounting and demounting the cartridge to the mounting portion; a cleaning member for removing a developer remaining on a surface of the drum; a residual developer container, demountably mounted to the image forming unit, for accommodating the developer removed by the cleaning member; wherein the residual developer container and the cartridge are detachably mountable individually relative to the image forming unit when the image forming unit is placed in the mounting and demounting position. | 02-21-2013 |
20130149004 | MAIN CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A main cartridge attachable and detachable to and from an apparatus body of an image forming apparatus for forming an image on a recording medium is provided. The main cartridge include a process device configured to act on a photosensitive member, a grip portion configured to be held by a user, and an attachment unit to attach a sub cartridge containing developer along the longitudinal direction of the main cartridge. In the longitudinal direction, the center position of the grip portion is disposed at the upstream side in the attachment direction of the sub cartridge from the center position of the main cartridge. | 06-13-2013 |
20130209138 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus for forming an image on a recording material includes an image bearing member for bearing a developer image and a cartridge that contains a developer that has a developing roller. A cleaning member is provided for removing developer remaining on the surface of the image bearing member, and a removed-developer accommodating container is provided for accommodating the developer removed by the cleaning member. | 08-15-2013 |
20130216258 | IMAGE FORMING APPARATUS AND CARTRIDGE - An image forming apparatus includes an image forming apparatus body and a cartridge attachable to and detachable from the image forming apparatus body. The cartridge includes a handle portion attached to the case body and grasped when attached to and detached from the image forming apparatus body. The handle portion can be positioned at a first position at which the handle portion protrudes beyond the case body, a second position at which the handle portion is closer to the case body than in the case where the handle portion is at the first position and the cartridge that has been attached to the image forming apparatus body comes into contact with the open-close portion when the open-close portion is closed, and a third position at which the handle portion is closer to the case body than in the case where the handle portion is at the second position. | 08-22-2013 |
20130336675 | IMAGE FORMING APPARATUS AND CARTRIDGE - An image forming apparatus for forming an image on a recording material includes a plurality of cartridges each including a developer accommodating portion for accommodating a developer for developing an electrostatic latent image formed on a photosensitive member. The apparatus also includes a cartridge supporting member including a plurality of mounting portions in which the plurality of cartridges is detachably mountable, with the cartridge supporting member being movable between an inside position inside of a main assembly of the image forming apparatus and an outside position outside of the main assembly. An associated preventing member is positioned at a first position when an associated cartridge is incorrectly mounted in an associated mounting portion, and the associated preventing member is retracted into a second position in contact with the cartridge supporting member when the associated cartridge is mounted in the associated mounting portion. | 12-19-2013 |
20140037330 | IMAGE FORMING APPARATUS HAVING A DOOR PATH REGULATING MEMBER - In an image forming apparatus including a door | 02-06-2014 |
20140105639 | PHOTOSENSITIVE DRUM UNIT, ASSEMBLING METHOD THEREFOR, AND ASSEMBLING THEREFOR - A photosensitive drum unit to which a coupling member | 04-17-2014 |
20140105641 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus for forming an image on a recording material, includes an electrophotographic photosensitive drum; a cartridge including a developing roller for developing an electrostatic latent image formed on the electrophotographic photosensitive drum, the cartridge containing a developer for effecting development and including a force receiving portion, wherein the cartridge is mounted to a main assembly of the electrophotographic image forming apparatus; and an urging member for urging the cartridge; wherein by mounting the cartridge, the force receiving portion receives a force from the urging member to urge the developing roller to the electrophotographic photosensitive drum. | 04-17-2014 |
20140219678 | IMAGE FORMING APPARATUS HAVING A DOOR PATH REGULATING MEMBER - In an image forming apparatus including a door | 08-07-2014 |
20140241755 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus includes a cartridge detachably mountable to a main assembly of the apparatus, the cartridge including a photosensitive drum, a drum frame supporting the drum, a force receiving portion for receiving a driving force for driving the drum from the main assembly, and a regulated portion, provided on the drum frame, for regulating rotation of the cartridge; a transfer member for transferring a developer image onto a toner image receiving member; a supporting member movable between an inside position and in which the supporting member detachably supports the cartridge and an outer position and in which the cartridge is mountable and demountable; a moving member capable of taking a first position in which the moving member urges the regulated portion to space the drum from the transfer member and a second position in which the moving member to contact the drum to the transfer member; and a regulating portion for engaging with the regulated portion to regulate rotation of the cartridge when the moving member is in the second position and the force receiving portion receives the force, and for permitting movement of the supporting member between the outer position and the inside position with the regulating portion being in engagement with the regulated portion to limit rotation of the cartridge. | 08-28-2014 |
20140363198 | IMAGE FORMING APPARATUS - Provided is an image forming apparatus. The image forming apparatus is provided with guide portions to be used to mount a cartridge group including plural cartridges in the image forming apparatus. Some of the guide portions are used also to mount an alternative cartridge, which is configured to occupy two or more of plural mounting spaces, in the image forming apparatus. | 12-11-2014 |
20140369714 | IMAGE FORMING APPARATUS - An image forming apparatus includes a cartridge supporting member movable between an inside position in a state of carrying a first cartridge and a second cartridge, and a drawn position in which said first cartridge and said second cartridge are mountable and demountable relative to said cartridge supporting member. The supporting member includes a first mounting portion for a first cartridge, and a second mounting portion for a second cartridge which is disposed upstream of said first mounting portion with respect to a supporting member drawing direction. A first guide portion for the first cartridge, and a second guide portion for said second cartridge, wherein a downward movement distance of said second cartridge when the cartridge is demounted from said second mounting portion is larger than that of said first cartridge. | 12-18-2014 |