Patent application number | Description | Published |
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 |
20100278559 | CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A cartridge for a main assembly of an electrophotographic image forming apparatus, wherein the main assembly includes a rotatable driving coupling member including a driving force transmitting portion for transmitting a driving force and a driving side abutment, wherein the cartridge is demountable in a direction substantially perpendicular to a rotational axis of the driving coupling member, includes a rotatable driven coupling member including a driving force receiving portion for receiving the driving force, and a driven side abutment to be abutted by the driving side abutment, the driven coupling member being slidable in a predetermined direction which is substantially parallel with a rotational axis of the receiving coupling member; wherein at least one of the driving side abutment and the driven side abutment is inclined so that the driven coupling member is retractable away from the driving coupling member in the predetermined direction by a force received by driven side abutment from the driving side abutment, and wherein a distance between the rotational axis of the driven coupling member and the abutment of the receiving abutment is not more than a distance between the rotational axis of the driven coupling member and the driving force receiving portion. | 11-04-2010 |
20120243905 | PROCESS CARTRIDGE, PHOTOSENSITIVE DRUM UNIT, DEVELOPING UNIT AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A process cartridge usable with an electrophotographic image forming apparatus, a main assembly of which is not provided with a mechanism for moving a main assembly side engaging portion provided in the main assembly to transmit a rotational force to an image bearing member in the direction of the rotational axis of the image bearing member by an opening and closing operation of a cover member for the main assembly. The process cartridge can be mounted to the main assembly in a direction substantially perpendicular to the rotational axis of the image bearing member without deterioration of the usability performance. With the process cartridge, the electrophotographic image forming apparatus can be downsized. in accordance with the movement of the process cartridge when the process cartridge is dismounted from the main assembly of the electrophotographic image forming apparatus, a coupling member which is inclinable and translatable relative to a rotational axis of a rotational force transmitted member enters an inside of the recess of the main assembly side engaging portion to receive the rotational force from the main assembly engaging portion. | 09-27-2012 |
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 |
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 |
20140112685 | CARTRIDGE AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A cartridge for a main assembly of an electrophotographic image forming apparatus. The cartridge includes a rotatable driven coupling member including a driving force receiving portion for receiving a driving force and a driven side abutment to be abutted by a driving side abutment. The coupling member is slidable in a predetermined direction that is substantially parallel to a rotational axis of the coupling member. | 04-24-2014 |
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 |