Patent application number | Description | Published |
20090245862 | PROCESS CARTRIDGE, DEVELOPER SUPPLY CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A developer supply cartridge supplies a developer into a process cartridge, and is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes a drum, a developing roller, a receiving-side shutter portion opening and closing a developer receiving opening, a receiving-side movable portion to move the receiving-side shutter portion, and a regulating member for regulating movement of the receiving-side movable portion. The developer supply cartridge includes a supplying-side developer accommodating portion, a developer supply opening supplying the developer from the supplying-side developer accommodating portion into the process cartridge through the developer receiving opening, a supplying-side shutter portion opening and closing the developer supply opening, and a supplying-side movable portion to open the supplying-side shutter portion when the developer supply cartridge enters the main assembly and the process cartridge is set in the main assembly, by engagement with the receiving-side movable portion. | 10-01-2009 |
20090290903 | PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, wherein the apparatus includes a supporting member, a movable member for moving the supporting member in a horizontal direction and upward and downward directions, an operating member for moving the movable member, and a regulating portion, the process cartridge includes an electrophotographic photosensitive drum; process means actable on the drum; a portion to be supported for being supported by the supporting member when the process cartridge is mounted to the main assembly of the apparatus; and a portion-to-be-regulated for being regulated by being contacted by the regulating portion to regulate movement of the process cartridge in the horizontal direction, when the supporting member is moved, by movement of the movable member by operation of the operating member and in the horizontal direction and the upward direction while supporting the process cartridge, wherein when the supporting member is moved in the horizontal direction and upward direction while supporting the process cartridge, the portion-to-be-supported slides on the supporting member, and the portion-to-be-regulated slides on the regulating portion. | 11-26-2009 |
20090290904 | CARTRIDGE AND IMAGE FORMING APPARATUS - A cartridge detachably mountable to a main assembly of the image forming apparatus, wherein the main assembly including an opening, an urging portion, a positioning portion and a regulating portion, the cartridge includes a portion to be urged by the urging portion so as to be moved in a crossing direction which crosses an inserting direction in which the cartridge is inserted, after the cartridge is inserted into the main assembly of the apparatus through the opening; a portion to be positioned by contacting to the positioning portion by the cartridge being moved by the urging portion in the crossing direction to position the cartridge relative to the main assembly of the apparatus; and a portion to be regulated by the regulating portion so as to prevent the cartridge from moving toward an outside through the opening in a state that portion to be positioned is in contact to the positioning portion, wherein the portion to be regulated is provided at a rear end of the cartridge and is brought, by movement of the cartridge in the crossing direction by the urging portion, to a regulating position where the portion to be regulated is behind the regulating portion with respect to the inserting direction to prevent the cartridge from moving toward the outside through the opening. | 11-26-2009 |
20090297216 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A process cartridge includes a first guided portion provided on a photosensitive member unit at a downstream side of a mounting direction of the process cartridge, a second guided portion provided along the mounting direction, and a third guided portion provided on a developing unit of the process cartridge along the mounting direction. | 12-03-2009 |
20110008074 | PROCESS CARTRIDGE, DEVELOPER SUPPLY CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A developer supply cartridge supplies a developer into a process cartridge, and is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes a drum, a developing roller, a receiving-side shutter portion opening and closing a developer receiving opening, a receiving-side movable portion to move the receiving-side shutter portion, and a regulating member for regulating movement of the receiving-side movable portion. The developer supply cartridge includes a supplying-side developer accommodating portion, a developer supply opening supplying the developer from the supplying-side developer accommodating portion into the process cartridge through the developer receiving opening, a supplying-side shutter portion opening and closing the developer supply opening, and a supplying-side movable portion to open the supplying-side shutter portion when the developer supply cartridge enters the main assembly and the process cartridge is set in the main assembly, by engagement with the receiving-side movable portion. | 01-13-2011 |
20110229196 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A process cartridge includes a drum; a rotatable roller including a first shaft end portion and a second shaft end portion; a bearing member for rotatably supporting ends of a shaft of the rotatable roller; an urging member for urging the rotatable roller via the bearing member in a drum contact direction; a cartridge frame for rotatably supporting the drum and for movably holding the rotatable roller via the bearing member; a movable guide member movable in an axial direction of the shaft of the rotatable roller and including a first contact portion; and a fixed guide member including a second contact portion. At least one of the first contact portion and the first shaft end portion has an inclined surface inclined with respect to the axial direction of the rotatable roller, and at least one of the second contact portion and the second shaft end portion has an inclined surface inclined with respect to the axial direction of the rotatable roller. | 09-22-2011 |
20120003003 | PROCESS CARTRIDGE, DEVELOPER SUPPLY CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A process cartridge comprises an electrophotographic photosensitive drum and a developing roller for developing an electrostatic latent image formed on the electrophotographic photosensitive drum with developer. The cartridge further comprises a receiving side developer accommodating portion, a developer receiving opening, a receiving side shutter portion, a receiving side rotatable portion, and a regulating member. When the regulating member takes a regulating position and a first receiving side operating portion takes an operating position, the regulating member engages with the first receiving side operating portion. When the regulating member takes the regulating position and a second receiving side operating portion takes the operating position, the regulating member engages with the second receiving side operating portion. | 01-05-2012 |
20120008974 | IMAGE FORMING APPARATUS - An image forming apparatus includes a rotatable image bearing member; a cleaning blade for removing toner in contact with the image bearing member; a load adjusting device for adjusting a contact load between the cleaning blade and the image bearing member; a developing roller for developing an electrostatic latent image on the image bearing member; a developing roller moving device for moving the developing roller between a developing position in which the electrostatic latent image is to be developed and a non-developing position retracted from the developing position; and a control device for effecting control such that the developing roller is moved from the developing position to the non-developing position by the developing roller moving device during rotation of the image bearing member and after an area on the image bearing member opposed to the developing roller at the time when the developing roller is started to be moved from the developing position to the non-developing position passes through a contact area between the cleaning blade and the image bearing member, the contact load is made smaller than that during development by the load adjusting device and then the rotation of the image bearing member is stopped. | 01-12-2012 |
20120269540 | MANUFACTURING METHOD OF DEVELOPING DEVICE, REMANUFACTURING METHOD OF PROCESS CARTRIDGE, DEVELOPING DEVICE AND PROCESS CARTRIDGE - A remanufacturing method of a developing device including a developer accommodating portion partitioned by a partitioning portion, a first opening provided in the partitioning portion and a seal member welded on the partitioning portion surrounding the first opening, wherein the first opening is opened by removing the seal member to supply a developer to the outside is provided. The method includes hermetically sealing, before or after re-filling the developer in the developer accommodating portion for reuse, the first opening by boning, on the partitioning portion, a plate-like member, which is provided with a second opening corresponding to the first opening and on which a reseal member for sealing the second opening is detachably bonded, at a region outside a welding trace, a region inside the trace, or a region ranging from an inside to an outside of the trace so as to cover the welding trace. | 10-25-2012 |
20130149010 | DEVELOPER CONTAINING CHAMBER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - An object is to smoothly convey toner from a developer containing chamber to a developing chamber even when an opening that provides communication between the developer containing chamber and the developing chamber has a connecting part for adding strength to the apparatus. | 06-13-2013 |
20130164029 | DEVELOPING DEVICE, PROCESS CARTRIDGE AND DRUM UNIT - A developing device for use with an image forming apparatus, includes: a developer carrying member for carrying a developer; a developer regulating member for regulating an amount of the developer carried on the developer carrying member; a first frame for supporting the developer regulating member; a fixing member for fixing the developer regulating member to the first frame; a second frame mounted to the first frame; and a molded resin portion formed by injecting a melted resin material into a space defined by the first and second frames. The molded resin portion is engaged with a first limiting portion provided as a part of the fixing member and projected into the space and is engaged with a second limiting portion provided as a part of the second frame to connect the first and second frame. | 06-27-2013 |
20130177334 | CARTRIDGE - A cartridge detachably mountable to a main assembly of an image forming apparatus includes: a frame; a member-to-be-energized; a fixing member, having electroconductivity, for fixing the member-to-be-energized to the frame, wherein the fixing member is electrically connected with the member-to-be-energized; a recessed portion, provided on the frame, where a part of the fixing member enters; and a molded resin portion formed by injecting a melted electroconductive resin material into the recessed portion, wherein when the cartridge is mounted in the main assembly, the molded resin portion electrically connects the fixing member with an energizing portion provided in the main assembly. | 07-11-2013 |
20140003838 | PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS | 01-02-2014 |
20140321883 | DEVELOPER CONTAINER, DEVELOPING APPARATUS, CLEANING APPARATUS, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - Provided is a developer container that accommodates developer, including: a first frame that has a recessed portion; and a second frame that has a first protruding portion, wherein the first frame and the second frame are joined by a first adhering portion in which the recessed portion and the first protruding portion are welded together, and a second adhering portion in which a second protruding portion and a flat portion are welded together, the recessed portion having a positioning inner side face that performs positioning of the first frame and the second frame within a recessed portion. Also provided are a method to manufacture a developer container, a developing apparatus having the developer container, a cleaning apparatus, a process cartridge, and an image forming apparatus. | 10-30-2014 |
20140334844 | DEVELOPING DEVICE, PROCESS CARTRIDGE AND DRUM UNIT - A developing device for use with an image forming apparatus, includes: a developer carrying member for carrying a developer; a developer regulating member for regulating an amount of the developer carried on the developer carrying member; a first frame for supporting the developer regulating member; a fixing member for fixing the developer regulating member to the first frame; a second frame mounted to the first frame; and a molded resin portion formed by injecting a melted resin material into a space defined by the first and second frames. The molded resin portion is engaged with a first limiting portion provided as a part of the fixing member and projected into the space and is engaged with a second limiting portion provided as a part of the second frame to connect the first and second frame. | 11-13-2014 |