摘要:
A disassembling tool pushes first and second coupling members out of a process cartridge that also has an electrophotographic photosensitive member, and first and second coupling members for rotatably coupling first and second frames of the cartridge together. The disassembling tool includes first and second base bodies, first and second engagement portions provided on the first and second base bodies respectively, and engageable with the cartridge to position the cartridge when the tool is mounted on the cartridge, and first and second pushing-out portions provided for movement relative to the first and second base bodies, respectively, for pushing out the first and second coupling members, respectively. The first and second engagement portions are provided at a location opposed to the first and second pushing-out portions, respectively, in a movement direction in which the first and second pushing-out portions are moved, respectively.
摘要:
A developing device to be mounted on an electrophotographic image forming apparatus main body and used for developing an electrostatic latent image formed on an electrophotographic photosensitive member, includes a developing container, an electrode attached to the inside of the developing container, a conductive member for securing electric conduction from the inside to the outside of the developing container, wherein the conductive member and the electrode are electrically connected by the conductive member being press-fit in a fitting portion provided in the electrode, and an elastic sealing member press-fit in a gap between the conductive member and the developing container.
摘要:
A process cartridge has an electrophotographic photosensitive drum, a developing member, a first frame for supporting the electrophotographic photosensitive drum, a second frame for supporting the developing member, a coupling pin for coupling the first frame to the second frame to be rotatable relative to each other, a first hole through which the coupling pin penetrates and which is provided in the first frame, a second hole into which the coupling pin is press-fitted and which is provided in the first frame, and a closed portion provided at a leading end of the coupling pin in a press fit direction in order to close the second hole.
摘要:
A developing device is detachably mountable to the main body of an electrophotographic image forming apparatus. The device is for developing an electrostatic latent image on an electrophotographic photosensitive member and includes a developing member for developing the electrostatic latent image formed on the electrophotographic photosensitive member, a developer container containing therein a developer to be used to effect the development of the electrostatic latent image by the developing member, a developing frame for supporting the developing member, a welding rib provided along the lengthwise direction of the developing frame to connect the developer container and the developing frame together by-ultrasonic welding, and a plurality of reinforcing members provided on the back of that surface of the developing frame on which the welding rib is provided, along the lengthwise direction of the welding rib, to increase the strength of the developing frame. The welding rib provided on the developing frame is disposed so as to be located between the plurality of reinforcing members as viewed from a direction intersecting with the surface and the back, and the developer container and the developing frame are connected together by the ultrasonic welding.
摘要:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes an electrophotographic photosensitive drum; a charging roller for charging the drum; a developing roller for developing an image formed on the drum; an input electrode; an output electrode; a grounding contact for grounding the drum; a charging bias contact receiving a charging bias voltage applied to the charging roller; a developing bias contact receiving a developing bias applied to the developing roller; an input electrical contact for receiving an input bias applied to the input electrode; and an output contact for transmitting, to the main assembly, an output corresponding to electrostatic capacities between the input and output electrodes and between the developing roller and the output electrode to detect in substantially real time a remaining amount of developer in the cartridge.
摘要:
The disassembling tool for a process cartridge has a base body, an engagement portion provided on the base body and adapted to be engaged with the process cartridge to thereby position the process cartridge, a pushing-out portion provided for movement relative to the base body for pushing out a coupling member, and a grip portion adapted to be gripped when the pushing-out portion is to be moved, and connected to the pushing-out portion, and the engagement portion is provided at a location opposed to the pushing-out portion in a movement direction in which the pushing-out portion is moved. Thereby, a process cartridge having a frame can be simply disassembled.
摘要:
The disassembling tool for a process cartridge has a base body, an engagement portion provided on the base body and adapted to be engaged with the process cartridge to thereby position the process cartridge, a pushing-out portion provided for movement relative to the base body for pushing out a coupling member, and a grip portion adapted to be gripped when the pushing-out portion is to be moved, and connected to the pushing-out portion, and the engagement portion is provided at a location opposed to the pushing-out portion in a movement direction in which the pushing-out portion is moved. Thereby, a process cartridge having a frame can be simply disassembled.
摘要:
A process cartridge includes: an electrophotographic photosensitive drum; a charging member for charging the drum; a developing member for developing with toner an electrostatic latent image formed on the drum; a first frame supporting the drum and the charging member; a second frame supporting the developing member; a first hole provided in the first frame; a second hole provided in the first frame; a third hole provided in the second frame; a connecting pin extending through the first hole, the second hole, and the third hole to rotatably connect the second frame to the first frame; and a reinforcing portion provided on the downstream side of the first frame with respect to the direction in which the connecting pin is force-fitted so as to restrain deformation of the second hole when force-fitting the connecting pin into the second hole.