Class / Patent application number | Description | Number of patent applications / Date published |
399113000 | Having subunit separation | 49 |
20080247776 | Image forming device and detachably loaded process unit - A developing unit is detachably mounted on a photosensitive unit to form a combined unit called a process unit. In use, the process unit is loaded into an electrophotographic image forming device. A rotational shaft of a photosensitive drum projects out from the photosensitive unit. When the process unit is loaded into the image forming device from a top open space, both ends of the rotational shaft are engaged with a pair of guides formed in side walls of the image forming device and guided down along the guides. The process unit is accommodated in an accommodating section when both ends of the rotational shaft have been brought into abutment with stops at the ends of the guides and a trailing end of the process unit is rotated downward about the rotational shaft. | 10-09-2008 |
20080253800 | PROCESS CARTRIDGE AND SPACE MAINTAINING MEMBER - A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the process cartridge includes a photosensitive member unit having a photosensitive drum; a developer carrying member for developing an electrostatic latent image formed on the photosensitive drum with a developer; a toner accommodating unit having a developer accommodating portion accommodating the developer to be used for development of the electrostatic latent image, the toner accommodating unit being fixed to the photosensitive member unit; a movable frame which is movable relative to the toner accommodating unit and which supports the developer carrying member; an urging member for urging the movable frame in a direction in which the developer carrying member approaches the photosensitive drum; and a space maintaining member, demountably provided between the photosensitive member unit and the movable frame in contact to the photosensitive member unit and the movable frame, for maintaining a state in which a distance between the photosensitive drum and the developer carrying member is larger than that in an image formation. | 10-16-2008 |
20080253801 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS USING SAME - A process cartridge includes a protective agent, a photoconductor, a charging unit, a development unit, a cleaning unit, and an application unit. The protective agent includes paraffin as main component. The photoconductor has a surface including polycarbonate applied with the protective agent. The development unit develops a latent image on the photoconductor. The cleaning unit removes materials remaining on the photoconductor. The application unit applies the protective agent to the surface of photoconductor. One peak in a given binding energy range is used to determine a coating condition of the photoconductor coated by the agent. The coating condition is determined by comparing an area ratio A | 10-16-2008 |
20090028602 | Image-Forming Device - An image-forming device includes: a main body; at least one photosensitive member; a plurality of developing units; a transferring unit; a first holding unit; and a guiding unit. The photosensitive member has a support shaft. Each developing unit has a developer-accommodating section that accommodates developer. The developer-accommodating section has an opening in a top side thereof. Each developing unit further has a developer-carrying member that is disposed near the opening of the developer-accommodating section. The first holding unit holds the plurality of developing units that are arranged in a row along a first removal direction. The first removal direction is orthogonal to the support shaft of the photosensitive member. The first holding unit is accommodated at a first accommodating position in the main body. The guiding unit enables the first holding unit to move between the first accommodating position and a first removal position that is separate from the first accommodating position in the first removal direction. | 01-29-2009 |
20090074454 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE - An electrophotographic image forming apparatus for forming an image on a recording material, to which a process cartridge is detachably mountable, the apparatus, includes (a) a plurality of mounting portions for detachably mounting process cartridges, respectively, the process cartridges each including, an electrophotographic photosensitive drum, a developing roller for developing an electrostatic latent image formed on the electrophotographic photosensitive drum, a developer accommodating portion for accommodating a developer for use by the developing roller to develop the electrostatic latent image, a developer supply opening for supplying the developer to the developing roller from the developer accommodating portion, a sealing member for unsealably sealing the developer supply opening, and unsealing means for unsealing the developer supply opening by removing the sealing member from the developer supply opening; (b) a motor; and (c) driving force transmitting means for selectively transmitting a driving force from the motor to the unsealing means to unseal the developer supply openings of the process cartridges mounted to the mounting portions. | 03-19-2009 |
20090087218 | DEVELOPING CARTRIDGE, IMAGE FORMING APPARATUS, AND METHOD OF MOUNTING/DEMOUNTING DEVELOPING CARTRIDGE TO/FROM IMAGE FORMING APPARATUS - A developing unit usable with an image forming apparatus includes a first frame to support a photoconductive medium, a second frame to support a developing member to apply a developer to the photoconductive medium, the second frame movable between a first position in which the photoconductive medium is at a developing gap from the developing member, and a second position in which the photoconductive medium is away from the developing member by a distance exceeding the developing gap, and a positioning unit to move the second frame from a current position in accordance with mounting and demounting of the developing unit to and from the image forming apparatus. | 04-02-2009 |
20090092413 | Photosensitive member cartridge - The invention provides a photosensitive member cartridge, that has, for example, a case including a bottom wall, an upper wall, and side walls. A photosensitive drum and a transfer roller are rotatably disposed in a space surrounded by the bottom wall, the upper wall, and the side walls. The bottom wall extends below the transfer roller. A developer cartridge, having a developing roller, is set on the extending portion of the bottom wall. | 04-09-2009 |
20090097878 | DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - A premixed developing system developing device, process cartridge, and image forming apparatus, in which a developing agent thrown up by a transport member is not discharged from a discharge aperture, variation in the quantity of the developing agent discharged to the outside does not occur, and the image quality of images output is stable. A discharge aperture is formed in the wall of a transport path of a transport member to discharge the developing agent to the outside when the surface of the developing agent exceeds a predetermined level. The transport member is provided with an area, in a part in the longitudinal direction, in which a screw portion is not formed. The discharge aperture is disposed opposite to the area, where the screw portion is not formed on the transport member, and is formed such that the length of the discharge aperture is smaller than the length of the area in the longitudinal direction. | 04-16-2009 |
20090175651 | Image Forming Apparatus and Photosensitive Cartridge - An image forming apparatus includes a first developing cartridge and a first photosensitive cartridge. The first developing cartridge is removably mounted in the first photosensitive cartridge and includes a toner hopper, a supply roller and a developing roller. The first photosensitive cartridge includes a photosensitive drum, a charger provided at a position adjacent to the photosensitive drum, a first wall provided adjacent to the supply roller, the toner hopper, and the developing roller when the first developing cartridge is mounted in the photosensitive cartridge, the first wall including a first opening, and a second wall which faces the first wall and is provided adjacent to the charger, the second wall including a second opening on an opposite side of the charger from the photosensitive drum. A portion of a wall of the first developing cartridge projects through the first opening in the first wall of the first photosensitive cartridge. | 07-09-2009 |
20090175652 | Image Forming Apparatus and Process Cartridge - An image forming apparatus is provided. An image forming apparatus includes: a drum cartridge having a photosensitive drum; a developing cartridge configured to be movably attached to the drum cartridge, the developing cartridge having: a developing roller; a bearing member; and a developing drive input member; and a spacing member for pressing against a predetermined portion of the developing cartridge and moving the developing cartridge such that the developing roller is spaced apart from the photosensitive drum, wherein the drum cartridge has an abutment portion with which the bearing member is brought into abutment, and wherein a straight line which connects the abutment portion with a center of a rotational axis of the developing drive input member extends substantially in the same direction as a connecting or disconnecting direction of the developing roller to or from the photosensitive drum. | 07-09-2009 |
20090190955 | Image Forming Apparatus and Image Forming Unit - Image forming apparatuses include: a casing; an image forming unit removable from the casing in a first direction; and plural developer cartridges. The cartridges may be attached and detached with respect to the image forming unit in a second direction that is inclined toward the first direction. Other image forming apparatuses include: a casing; an exposure device; a plurality of cartridges configured to be attached and detached with respect to the casing in a first direction; and a recording medium transport system for transporting recording media adjacent the photosensitive members in a second direction. The first direction may be inclined with respect to the second direction, and at least a portion of optical paths of the light emitted from the exposure device may extend parallel with the first direction. Aspects also relate to image forming units, e.g., for use in image forming apparatuses as described above. | 07-30-2009 |
20090220274 | Tandem Type Photosensitive Unit and Image Forming Apparatus - A tandem type photosensitive unit detachably mounted in a main body of an image forming apparatus is provided. The tandem type photosensitive unit includes a plurality of parallelly arranged photosensitive drums; developer cartridges mounted on respective cartridge mounting positions having a constant positional relationship to photosensitive drums respectively; a pair of first side plates opposed to each other in an axial direction of the photosensitive drums for positioning each photosensitive drum by retaining both end portions of each photosensitive drum in the axial direction; and a pair of second side plates opposed to each other in the axial direction for retaining each developer cartridge mounted on the cartridge mounting position. The pair of second side plates are provided with guided portions guided to a unit guide portion provided in the main body and cartridge guide portions for guiding mounting of each developer cartridge on the cartridge mounting position. | 09-03-2009 |
20090232543 | DEVELOPING DEVICE OF IMAGE FORMING APPARATUS - An embodiment of the invention provides a magnet facing between a first separating magnetic pole and a second separating magnetic pole on an outer wall of a case. By the rotation of a developing sleeve, a blocking brush is formed between an inner wall of a supply part and the developing sleeve, and an air entering the case is prevented from entering a carrying part. | 09-17-2009 |
20090285600 | IMAGE FORMING APPARATUS - An image forming apparatus in which a drum unit or a developing unit can be individually replaced, and the efficiency of an operation of providing the developing unit with developer or of an operation of removing the developer from the developing unit can be improved includes a supplying roller including a magnetic roller and a developing sleeve arranged on an outer circumference of the magnetic roller. A fixing member is attached to an axial portion of the magnetic roller. The supplying roller can be removably attached to a side of a photoconductive drum by the fixing member, and at the same time, a pole position of the magnetic roller relative to the photoconductive drum can be fixed. | 11-19-2009 |
20100021201 | IMAGE FORMING APPARATUS - An image forming apparatus includes process units arranged in a predetermined direction to form a process-unit row, each having a photosensitive body and a developer container; a casing accommodating the process units and having a cover opening and closing an opening formed at one side in the predetermined direction, and an exposure member exposing the photosensitive body, and having a laser source, a deflector, and an optical element, and the exposure member is arranged facing the developer container of each process unit in a direction orthogonal to the predetermined direction. The process units are detachable from the casing, through the opening of the casing, and the developer container of one process unit arranged at one end of the process-unit row has a protruding portion protruding toward the exposure member to overlap with the exposure member in the orthogonal direction. | 01-28-2010 |
20100034557 | Process cartridge and image forming apparatus employing same - A process cartridge detachably attached to an image forming apparatus includes a first subunit, a second subunit, a first positioning member, and a second positioning member. The first subunit accommodates a photoconductor therein. The second subunit accommodates a developer applicator therein. The photoconductor and the developer applicator are arranged substantially parallel to each other to define a development gap therebetween. The first positioning member is fastened to both the first and second subunits to position ends of the photoconductor and the developer applicator on a first side of the respective subunits. The second positioning member is fastened to only one of the first and second subunits to position ends of the photoconductor and the developer applicator on a second side of the respective subunits opposite to the first side. An image forming apparatus employing such a process cartridge is also disclosed. | 02-11-2010 |
20100074649 | IMAGE-FORMING DEVICE HAVING PHOTOSENSITIVE DRUM AND LED ARRAY - An image forming device capable of attaching and detaching a process cartridge to and from a frame without moving an LED array when a door is open. The process cartridge includes a first casing supporting a photosensitive drum and a developing roller, and a second casing pivotally movably connected to the first casing and supporting a charger. The second casing is pivotally movable between a first position in which the charger is positioned close to the LED array for image forming operation, and a second position in which the charger is remote from the LED array in accordance with push-in and pull-out movement of the first casing relative to the frame. | 03-25-2010 |
20100135696 | TANDEM PHOTOSENSITIVE-MEMBER UNIT HAVING GRIP PART - An image-forming device includes a main body and a tandem photosensitive-member unit. The tandem photosensitive-member unit includes a unit frame, a plurality of photosensitive members, a front-side grip part, and a rear-side grip. The unit frame is configured to be slidably installed to and removed from the main body in a predetermined direction. The unit frame has a leading side and a trailing side with respect to the predetermined direction. The plurality of photosensitive members is provided corresponding to a plurality of colors and is supported by the unit frame. The front-side grip part is provided at the leading side of the unit frame. The rear-side grip part is provided at the trailing side of the unit frame. | 06-03-2010 |
20100142996 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A process cartridge detachably is mountable to a main assembly of the apparatus of an image forming apparatus including an urging member and a positioning portion. The cartridge includes a photosensitive drum; a positionable portion positioning the cartridge by engaging the positioning portion when the cartridge is mounted to the apparatus; first and second urgable portions being urged respectively, by first and second urging portions of the urging member to urge the positionable portion to the positioning portion during cartridge mounting; and an electrical contact, provided between the first and second urgable portions with respect to a horizontal direction crossing an axis of the drum, for connecting electrically to an electrical contact portion in the urging member, when the cartridge is mounted to the apparatus. | 06-10-2010 |
20100158565 | PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a drum, first and second guidable portions guidable by first and second guides when the cartridge enters or advances in the main assembly, first and second regulatable portions provided at leading and trailing sides of the cartridge with respect to the advancing direction and regulated by a first main assembly regulator when the process is advancing in the main assembly, first and second positionable portions to be positioned at first and main assembly second positioners, respectively, by the urging force of a main assembly urging member after the first and second regulatable portions pass the first and second regulators, respectively. The cartridge is mounted to the main assembly with the first and second positionable portions at the first and second positioners, respectively, by the urging force of the urging member. | 06-24-2010 |
20100166455 | IMAGE FORMING APPARATUS - An image forming apparatus includes: a main body; an image forming unit including a plurality of photosensitive drums on which electrostatic latent images are formed, respectively; a sheet storing unit detachably attached to the main body and configured to store a recording sheet, and the sheet storing unit being disposed in a first space defined in the main body when the sheet storing unit is attached to the main body; and a belt unit disposed between the plurality of photosensitive drums and the sheet storing unit and including a belt opposing the plurality of photosensitive drums. The belt unit is detachable from the main body through the first space in a state in which at least a part of the sheet storing unit is positioned outside the main body. | 07-01-2010 |
20100260516 | Process Cartridge, Main Body Cartridge, Image Carrier Body Cartridge, Developing Cartridge, Toner Cartridge, and Image Forming Apparatus - An image forming apparatus is provided which can be switched between states in which a developing roller is attached to an image carrier body by applying a pressing force to a developing cartridge and a state in which the developing roller can be released from attachment from the image carrier body. When an operation part of a toner cartridge is arranged at an installation position a pressing force can be applied to a developing cartridge by protruding parts fitting with spring parts, and a developing roller can be attached to a photoconductor drum by the applied pressure. When the operation part is arranged at a removal position, the fitting can be undone, causing the applied pressure to be released. | 10-14-2010 |
20100272469 | IMAGE FORMING APPARATUS - An image forming apparatus has a tray, which is able to be drawn out of the apparatus and on which a plurality of cartridges of different sizes can be mounted. A cartridge, being the largest in size among a plurality of process cartridges, is detachably arranged at a location at which it is first exposed to outside when a cartridge tray is drawn out. A developer storage portion of the largest cartridge has the largest capacity and stores a developer of a black color. | 10-28-2010 |
20100296836 | Photosensitive member cartridge - A photosensitive member cartridge for use with an image-forming apparatus includes a photosensitive drum and a cartridge case comprising an upper wall, a bottom wall, a right side wall, and a left side wall. An outer surface of the upper wall faces upwards when the photosensitive member cartridge is installed in the image-forming apparatus. The right side wall extends upwardly from a right side of the bottom wall, and the left side wall extends upwardly from a left side of the bottom wall. The upper wall connects upper edges of the right side wall and the left side wall. A light-entrance portion is formed in the upper wall and is configured to allow a laser beam to pass through the upper wall and reach the photosensitive drum when the photosensitive member cartridge is installed in the image-forming apparatus. | 11-25-2010 |
20100303499 | Cartridge Assembly of Image Forming Device - A cartridge assembly detachably mounted on a main casing of an image forming device includes a first cartridge, a second cartridge, and a lock member. The first cartridge has a first handle. The second cartridge has a second handle. The first handle and the second handle are configured to provide a relative position capable of realizing simultaneous access to the first handle and the second handle in case of an assembled state between the second cartridge and the first cartridge for integral attachment to or detachment from the main casing. The lock member has a lock section and an operation section. The lock section is movable between a lock position and an unlock position. The operation section is configured to move the lock section between the lock position and the unlock position. The first handle and the operation section are configured to provide a relative position capable of realizing simultaneous access to the first handle and the operation section to move the lock section from the lock position to the unlock position for detachment of the second cartridge from the first cartridge. | 12-02-2010 |
20110188888 | Photosensitive member cartridge - A photosensitive member cartridge for use with an image-forming apparatus includes a photosensitive drum and a cartridge case comprising an upper wall, a bottom wall, a right side wall, and a left side wall. An outer surface of the upper wall faces upwards when the photosensitive member cartridge is installed in the image-forming apparatus. The right side wall extends upwardly from a right side of the bottom wall, and the left side wall extends upwardly from a left side of the bottom wall. The upper wall connects upper edges of the right side wall and the left side wall. A light-entrance portion is formed in the upper wall and is configured to allow a laser beam to pass through the upper wall and reach the photosensitive drum when the photosensitive member cartridge is installed in the image-forming apparatus. | 08-04-2011 |
20110236060 | PROCESS CARTRIDGE - A process cartridge includes: a drum cartridge; a developing cartridge, which holds a developing roller at a first end portion thereof, and which is detachably mounted to the drum cartridge; a lock member, which is provided to the drum cartridge, and which is displaceable between a lock position and a lock release position; an operation member that displaces the lock member to the lock release position; a lifting member that lifts a second end portion of the developing cartridge from the drum cartridge as the lock member is displaced to the lock release position; a developing-side holding part that extends in a direction orthogonal to the lifting direction of the second end portion from the drum cartridge; and a drum-side holding part that extends in parallel with the developing-side holding part while being opposed to the developing-side holding part in the lifting direction when the developing cartridge is mounted. | 09-29-2011 |
20110293325 | Drum Unit, Development Cartridge Detachably Attachable to the Drum Unit, and Image Forming Apparatus Having the Drum Unit and the Development Cartridge - A drum unit is provided, which includes a frame configured such that a development cartridge including a pressed portion is detachably attached thereto, and a pressing member. The development cartridge is movable between a pressed state where the pressed portion is pressed by the pressing member when attached to the frame and a released state where the pressed portion is released from pressing of the pressing member when the development cartridge is attached to the frame. The pressing member includes a pressing section that contacts and presses the pressed portion when the development cartridge is in the pressed state, and a restriction section configured to, when the development cartridge is in the pressing state, restrict movement of the pressed portion in a released direction, in which the pressed portion moves when the development cartridge moves from the pressing state to the released state. | 12-01-2011 |
20110311274 | ELECTROPHOTOGRAPHIC COLOR IMAGE FORMING APPARATUS AND CARTRIDGE - A color electrophotographic image forming apparatus for forming a color image on a recording material, the apparatus includes a main assembly; a drum cartridge including an electrophotographic photosensitive drum and detachably mountable to the main assembly of the apparatus of an electrophotographic image forming apparatus; a plurality of developing cartridges each comprising a developing roller for developing an electrostatic latent image formed on electrophotographic photosensitive drum of the drum cartridge mounted to the main assembly; a main assembly side drum cartridge guide for guiding the drum cartridge; a main assembly side drum cartridge positioning portion for positioning the drum cartridge to the main assembly of the apparatus; wherein the drum cartridge is provided with a positioning portion for positioning the developing cartridge relative to the drum cartridge with respect to an entering direction of the developing cartridge, and the developing cartridge is provided with insertion guide means for guiding insertion of a developing cartridge right thereabove. | 12-22-2011 |
20120269547 | DEVELOPING UNIT, PROCESS UNIT, AND IMAGE FORMING DEVICE - A developing unit detachably mountable in a photosensitive member unit including a photosensitive member on which an electrostatic latent image is formable, a pressing member, and a positioning portion includes: a developing unit frame; a developing roller; and a directing portion. The developing roller is rotatably supported to the developing unit frame, and configured to supply developing agent to the electrostatic latent image formed on the photosensitive member. The directing portion is fixed to the developing unit frame for directing the developing unit frame to a predetermined orientation and for fixing a position of the developer unit frame. The directing portion includes: a pressed portion configured to receive a pressure force from the pressing member for moving the developing roller toward the photosensitive member; and a positioned portion abuttable on the positioning portion for positioning the developing unit relative to the photosensitive member unit. | 10-25-2012 |
20130051851 | Process Cartridge - A process cartridge includes: a drum cartridge including a photoconductor; a development cartridge configured to be detachably attached to the drum cartridge and including a developer carrying member for supplying developer to the photoconductor; a locking member provided on the drum cartridge and configured to be switchable between a locking position in which the development cartridge attached to the drum cartridge is in a locked state and restrained from being moved in a removing direction in which the development cartridge is removed from the drum cartridge and a lifting position in which the locked state is released and the development cartridge is movable in the removing direction, and a retaining member configured to retain the development cartridge which has been moved from the locked state in the removing direction by switching the locking member from the locking position to the lifting position. | 02-28-2013 |
20130136494 | Process Unit Having Drum Cartridge and Developer Cartridge - A process unit includes a photosensitive unit, a developer unit, a first urging member, and a second urging member. The first urging member urges the developer unit with a first urging force when the developer unit is in a contact position where a developing member contacts a photosensitive drum. The first urging member urges the developer unit with a second urging force greater than the first urging force when the developer unit is in a separated position where the developing member is separated from the photosensitive drum. The second urging member urges the developer unit with a third urging force smaller than the first urging force when the developer unit is in the contact position. The second urging member urges the developer unit with a fourth urging force smaller than the third urging force when the developer unit is moved from the separated position to the contact position. | 05-30-2013 |
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 |
20130223877 | APPARATUS AND METHOD FOR PREVENTING AN INFORMATION STORAGE DEVICE FROM FALLING FROM A REMOVABLE DEVICE - An information storage device installed in a removable device configured to be removably installed in an image forming apparatus body, includes: an information storage unit that stores information communicated between the image forming apparatus body and the removable device; a terminal that comes in contact with a body side terminal; and a substrate that holds the information storage unit and the terminal and includes a hole configured to be engaged with a protruding section installed in the image forming apparatus body. The terminal includes a plurality of terminals each including one of a plurality of metallic plates arranged in a transverse direction thereof. An earth terminal, which comes in contact with a body side earth terminal formed in the protruding section, is formed in the hole. The hole is disposed at a position sandwiched between two metallic plates among the plurality of metallic plates. | 08-29-2013 |
20130287435 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus, including: an electrophotographic photosensitive member; a developer carrying member configured to carry developer to develop a latent image on the photosensitive member in contact with the photosensitive member; and a developer feed member configured to feed the developer to the carrying member in contact with the carrying member, wherein the photosensitive member and the carrying member are separated from each other during non-image formation and brought into contact with each other after the photosensitive member and the carrying member start to be rotated, and wherein, during a time period between a time when the photosensitive member and the carrying member start to be rotated and a time when the photosensitive member and the carrying member are brought into contact with each other, a number of revolutions of the feed member is larger than a number of revolutions of the carrying member. | 10-31-2013 |
20140056614 | PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A process cartridge includes an electrophotographic photosensitive drum, a frame for supporting the electrophotographic photosensitive drum, a developer roller for developing an electrostatic latent image formed on the electrophotographic photosensitive drum with a developer, and a developer supplying roller for supplying the developer to the developing roller. The process cartridge also includes first and second portions-to-be-positioned on ends of the cartridge, and a portion-to-be urged for receiving an elastic force. A developer supplying roller bias contact is provided exposed at an end side of the process cartridge for receiving a supplying roller bias voltage to be supplied to the developer side supplying roller, with the cartridge side developer supplying roller bias facing obliquely downward. | 02-27-2014 |
20140072339 | PROCESS CARTRIDGE - A process cartridge includes an image bearing member unit configured to rotatably support an image bearing member, and a developing unit configured to rotatably support a developer bearing member, wherein the developing unit includes a first supported portion configured to be swingably supported with respect to the image bearing member unit, a second supported portion provided configured to be swingably and slidably supported with respect to the image bearing member unit, and a regulated portion configured to be capable of contacting a regulating portion provided on the image bearing member unit, wherein the regulating portion regulates the developing unit from moving in a slide direction of the second supported portion, by contacting the regulated portion, when the image bearing member and the developer bearing member rotate while contacting to each other. | 03-13-2014 |
20140086631 | Process Unit - A process unit includes a drum frame supporting a photoconductor drum and a development frame supporting a development roller. The development cartridge is swingably supported by the drum frame at a coupling joint provided at a first side of the development frame and a support portion provided at a second side of the development frame. A center of rotation of the development roller is located in a position shifted from a line segment connecting a center of rotation of the coupling joint and a center of rotation of the photoconductor drum to an upstream side with respect to a direction of rotation of the coupling joint as viewed in an axial direction of the development roller, such that the development roller is pressed against the photoconductor drum by the action of the rotatory force received by the coupling joint. | 03-27-2014 |
20140099145 | Image Recording Device - An image recording device includes a pressing force adjusting mechanism that adjusts a pressing force of a developing roller that is provided by an elastic member, against a photoconductive drum. This provides for modification and adjustment of the pressing force of the developing roller that is pressed against the photoconductive drum by the biasing force from the elastic member. Consequently, even where the developing rollers have various radius dimensions or where elastic force of the elastic member changes, adequate pressing force depending on each case can be applied to the developing roller, thereby improving the recorded quality of the image recording device. | 04-10-2014 |
20140212169 | Image Forming Apparatus - An image forming apparatus includes: a plurality of photoconductor drums; a plurality of exposure members; a drum supporting member having a pair of side walls disposed opposite to each other in an axial direction of the photoconductor drum and configured to support the photoconductor drums and the exposure members between the side walls; a belt disposed below and opposite to the photoconductor drums; a pair of guide members configured to support the drum supporting member while allowing rectilinear movement of the drum supporting member; and a main body circuit board provided in the main body and connected to the exposure members via a cable. The main body circuit board is arranged above the drum supporting member. | 07-31-2014 |
20150023692 | Process Cartridge - A process cartridge includes an image carrying member cartridge and a developing cartridge. The image carrying member cartridge includes a first handle. The developing cartridge includes a second handle. In a state where the developing cartridge is attached to the image carrying member cartridge, a one edge of the first handle is located at substantially the same position as a one edge of the second handle in a direction, and the second handle is spaced apart from the first handle. | 01-22-2015 |
20150063866 | ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - An electrophotographic image forming apparatus may include a body frame; a developer cartridge; a toner cartridge mounted in the body frame to be detachable, and is configured to move to a first location where the toner cartridge starts to connect to the developer cartridge to supply toner and to a second location where the connection is completed; at least one first location regulating member provided in the developer cartridge and regulating a relative location of the toner cartridge with respect to the developer cartridge when the toner cartridge is located in the first location; and at least one second location regulating member provided in the body frame and regulating a relative location of the toner cartridge with respect to the developer cartridge so that the toner cartridge is spaced apart from the at least one first location regulating member when the toner cartridge is located in the second location. | 03-05-2015 |
20150125180 | Process Cartridge Capable of Suppressing Developer From Leaking Out of Developer Cartridge, and Image Forming Apparatus Provided with the Same - A process cartridge includes: a developer cartridge; and a photosensitive-member cartridge. A casing of the photosensitive-member cartridge includes: a photosensitive-member accommodating portion; and a cartridge-accommodating portion disposed next to the photosensitive-member accommodating portion in a first direction. The cartridge-accommodating portion includes a first wall and a first portion. The first wall extends in the first direction and confronts the developer cartridge in a second direction intersecting the first direction. The first wall has a first end and a second end positioned farther away from the photosensitive-member accommodating portion in the first direction than the first end from the photosensitive-member accommodating portion. The first portion extends from the second end in the second direction and protrudes further than the developer cartridge in the second direction. The photosensitive-member accommodating portion includes a second portion protruding in the second direction further than a center region in the axial direction of the developer cartridge. | 05-07-2015 |
20150139691 | Image Forming System Including a Plurality of Types of Developing Cartridges and a Plurality of Types of Image Carrier Cartridges - An image forming system includes: a main casing of an image forming apparatus; a plurality of types of developing cartridges including first and second developing cartridges; and a plurality of types of image carrier cartridges including first and second image carrier cartridges each capable of accommodating selected one of the developing cartridges. The first developing cartridge includes a first cover member. The second developing cartridge includes a second cover member different from the first cover member. The first image carrier cartridge includes a first engaging portion engageable with the first cover member, and a first restriction portion. The second image carrier cartridge includes a second engaging portion engageable with the second cover member. The first restriction portion is configured to restrict the second cover member from engaging the first engaging portion. | 05-21-2015 |
20160041519 | IMAGE FORMING APPARATUS - An image forming apparatus includes a printer body, a drum cartridge detachably attachable to the printer body, and a developing cartridge detachably attachable to the drum cartridge. The drum cartridge includes a handle and an urging member. The handle is configured to move between a protruding position at which the handle protrudes toward an attaching/detaching path for attaching and detaching the developing cartridge to and from the drum cartridge and a retracted position at which the handle is located farther from the attaching/detaching path than the handle that is located at the protruding position. The urging member urges the handle toward the protruding position. The handle is configured to protrude toward the protruding position by an urging force of the urging member when the developing cartridge is detached from the drum cartridge. | 02-11-2016 |
20160062312 | Cartridge Having Photosensitive Body Cartridge and Developer Cartridge - A developer cartridge includes: a first rotary body having at least one detected part; and a second rotary body. The first rotary body is configured to rotate between a first position, in which a transmission part is disposed opposite the second rotary body, and a second position, in which a non-transmission part is disposed opposite the second rotary body. The first rotary body includes a contacted part. A photosensitive body cartridge includes a moving member. When the moving member is in a third position, the moving member contacts the contacted part of the first rotary body disposed in the second position, causing the first rotary body to rotate to the first position. Thereafter, in association with rotation of the first rotary body, the moving member moves to a fourth position, in which the moving member is unable to contact the contacted part. | 03-03-2016 |
20160139558 | CARTRIDGE AND IMAGE FORMING APPARATUS USING THE CARTRIDGE - A cartridge insertable into a main assembly of an image forming apparatus includes a first unit including a first bearing portion for supporting an image bearing member, a second unit including a second bearing portion for supporting a developer carrying member, and a storing medium including an electrical contact. The second bearing portion is provided inside the first bearing portion with respect to a rotational axis direction of the image bearing member. At least a part of the storing medium is supported by the second unit and is provided at a position outside the second bearing portion and inside an outermost configuration of the first unit with respect to the rotational axis direction. The electrical contact is faced toward a downstream with respect to an inserting direction of the cartridge into the main assembly. | 05-19-2016 |
20160179049 | Roll Deskewing Device for an Electrophotographic Image Forming Device | 06-23-2016 |
20160179051 | DEVELOPING CARTRIDGE AND IMAGE FORMING APPARATUS EMPLOYING THE SAME | 06-23-2016 |