摘要:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes first and second end covers, first and second bottom-surface portions to be guided by first and second main assembly guide portions, first, second, and third portions to be positioned by first, second, and third main assembly positioning portions, and a driving force receiving portion partly exposed through the first end cover between the first and third portions to be positioned and engaging with a main assembly driving force transmitting portion to rotate a process-cartridge developing member when the process cartridge is mounted to the apparatus.
摘要:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes first and second end covers, first and second bottom-surface portions to be guided by first and second main assembly guide portions, first, second, and third portions to be positioned by first, second, and third main assembly positioning portions, and a driving force receiving portion partly exposed through the first end cover between the first and third portions to be positioned and engaging with a main assembly driving force transmitting portion to rotate a process-cartridge developing member when the process cartridge is mounted to the apparatus.
摘要:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes first and second end covers, first and second bottom-surface portions to be guided by first and second main assembly guide portions, first, second, and third portions to be positioned by first, second, and third main assembly positioning portions, and a driving force receiving portion partly exposed through the first end cover between the first and third portions to be positioned and engaging with a main assembly driving force transmitting portion to rotate a process-cartridge developing member when the process cartridge is mounted to the apparatus.
摘要:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a first frame; a second frame coupled with the first frame for rotation about a shaft relative to each other; a first electrical contact, provided in the first frame, for receiving, from the main assembly, a bias voltage to be supplied to the charging member; a second electrical contact, provided in the second frame, for receiving, from the main assembly, a bias voltage to be supplied to a developing member, a developer feeding member and a regulating member; and a third electrical contact, provided in the first frame coaxially with the drum, for electrically grounding the drum to the main assembly. The first and second contents are disposed at one end of the first frame and the second frame, respectively, and the third contact is disposed at the other end of the first frame, and wherein the contacts are disposed such that, the first contact takes a higher position than the second.
摘要:
A process cartridge detachably mountable to a main assembly of an image forming apparatus includes an electrophotographic photosensitive member; developing device for developing an electrostatic latent image formed on the electrophotographic photosensitive member with a developer; a developer container for containing the developer, the developer container having an opening for supplying the developer to the developing means; a sealing member for sealing the opening of the developer container; a winding shaft for winding the sealing member, the sealing member being rotatably supported by the developer container; a driving device for applying a driving force to rotate the winding shaft; and drive control device for permitting and preventing transmission of the driving force to the winding shaft, wherein the driving control device permits the transmission in response to insertion of the process cartridge into the main assembly of the image forming apparatus and prevents transmission in response to a predetermined number of rotations of the winding shaft.
摘要:
A toner seal member to be used for sealing a developer container including a developer accommodating portion for accommodating a developer; and an opening for supplying the developer from the developer accommodating portion, the toner seal member being for sealing the opening, wherein the toner seal member unseals the opening by being automatically wound up, the toner seal member including a sealing portion for covering and sealing the opening; and a regulating portion for regulating an operation of a detecting member for detecting winding-up of the toner seal member to unseal the opening.
摘要:
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.
摘要:
A developer supply cartridge supplies 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 opening and closing a developer receiving opening receiving the developer used by the roller, a receiving-side mover to move the shutter including an operator, and a regulator regulating movement of the mover when the operator is at an operating position. The developer supply cartridge includes a developer accommodator, developer supply opening supplying developer from the accommodator into the process cartridge through the developer receiving opening, a supplying-side shutter opening open and closing the developer supply opening, and a supplying-side mover to move the supplying-side shutter from a closed to an open position when the developer supply cartridge enters and the process cartridge is set in the main assembly, by engagement with the operator.
摘要:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit for rotatably supporting the drum, first and second portions to be positioned relative to the main assembly, a rotatable developing unit, and first and second portions to be supported on first and second supporting portions to permit a rotation of the developing unit in the crossing direction when the process cartridge is set in the main assembly of the apparatus, and a driving force receiving member, rotatably supported on an outer surface of the second portion to be supported, for receiving a driving force for rotating the developing roller from a driving force transmission member provided in the main assembly when the process cartridge is set in the main assembly of the apparatus.
摘要:
A process cartridge detachably mountable to the main body of an image forming apparatus includes an electrophotographic photosensitive drum, at least one process device for acting on the drum, a cartridge frame holding the drum and the process device and exposing a portion of the drum, a shutter member provided for movement between a position to protect and a position to permit exposure the of the drum, and a shutter opening and closing link mechanism for moving the shutter member in operative association with the opening and closing operation of an openable and closable door when the process cartridge is mounted on the cartridge mounting portion of the main body of the image forming apparatus.