Abstract: A process cartridge including an electrophotographic photosensitive member, a process unit for operating on the electrophotographic photosensitive member, a plurality of engaging members provided at a first frame, and a plurality of engaging members provided at a second frame. The first frame and the second frame are connected by connecting respective engaging members selected from the plurality of engaging members provided at the first frame and engaging members selected from the plurality of engaging members provided at the second frame. The process cartridge is detachably mountable in an electrophotographic image forming apparatus.

Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes an electrophotographic photosensitive member; a cartridge coupling member, provided coaxially with the photosensitive member, for engaging with a main assembly coupling member to receive driving force for rotating the photosensitive member when the process cartridge is mounted to the main assembly; a developing roller for supplying toner to the photosensitive member to develop a latent image formed on the photosensitive member; a driving force transmission member, disposed at one longitudinal end of the photosensitive member to transmit the driving force from the photosensitive member to the developing roller; a driving force receiving member, engaged with the driving force transmission member and disposed at one longitudinal end of the developing roller, for receiving the driving force for rotating the developing roller; and a magnetic seal member, disposed with a gap from the developing rol

Abstract: A toner container for containing therein toner used for development by a developing device for developing a latent image formed on an electrophotographic photosensitive member is provided. The developing device is supported by a developing frame, and the toner container is mounted in an electrophotographic image forming apparatus. The toner container having a toner frame has a toner containing portion containing the toner therein, a toner supply opening for supplying the toner contained in the toner containing portion to the developing device, and a toner seal for openably sealing the toner supply opening. A take-up member, disposed in a space formed by the developing frame and the toner frame being coupled together, is provided for taking up the toner seal. A drive force imparting device is provided for imparting a drive force to the take-up member.

Abstract: The present invention provides a method for recycling a process cartridge removably mountable to an image forming apparatus, comprising the steps of: (a) dividing a process cartridge into a first frame including an image bearing member, and a second frame including a developing means and a developer containing means for containing developer used by the developing means and having an opening through which the developer is supplied to the developing means; (b) thereafter, removing the developing means from the second frame; (c) thereafter, replenishing developer to the developer containing means through the opening; (d) thereafter, removably attaching a seal for closing the opening to the opening; and (e) thereafter, locking the first and second frames to each other, thereby assembling the process cartridge.

Abstract: A process cartridge remanufacturing method for a process cartridge detachably mountable to a main assembly of an image forming apparatus includes the steps of providing a new photosensitive drum; providing a new toner-development frame including a new toner frame having a toner containing portion for containing toner, a new development frame having a roller mounting portion for mounting a developing roller for supplying toner to the photosensitive drum, wherein the toner frame and the development frame are welded with a new removable toner seal therebetween for preventing the toner in the toner containing portion from leaking out; preparing a drum frame to be reused having a drum mounting portion for mounting the photosensitive drum; supplying toner into the toner containing portion; mounting the developing roller to the new development frame; mounting the photosensitive drum to the drum frame to be reused; and rotatably engaging the new toner-development frame and the drum frame to be reused.

Abstract: A charging apparatus includes a rotatable charging member, contactable to a member to be charged, for charging the member to be charged, the rotatable charging member is provided with a rotation shaft; an electroconductive elastic member for urging the rotatable charging member to the member to be charged, wherein the rotatable charging member is capable of being supplied with a voltage through the elastic member; wherein a part of the elastic member and a peripheral surface of the rotation shaft are contacted to electrically connect the elastic member with the rotation shaft.

Abstract: A toner supply container for supplying toner into a toner accommodating container for accommodating the toner usable for developing a latent image formed on an electrophotographic photosensitive member, wherein the toner accommodating container is detachably mountable relative to a main assembly of an electrophotographic image forming apparatus, including a guide portion for guiding the toner supply container into the toner accommodating container with engagement with the toner accommodating container; a first portion and a second portion which are opposed to each other; a third portion connecting one longitudinal ends of the first portion and second portion, wherein the third portion are foldable; a fourth portion connecting the other longitudinal ends of the first portion and second portion, wherein the fourth portion are foldable; a toner supply opening, provided along a longitudinal direction between the first portion and the second portion, for supplying into the toner accommodating container the toner a

Abstract: A developing apparatus includes a developing sleeve for carrying a developer; a hollow magnet roller in the sleeve; a supporting member inserted into the developing sleeve and the magnet roller to support an inside surface of the developing sleeve and the magnet roller.

Abstract: A process cartridge detachably mountable to a main assembly of an image forming apparatus includes an electrophotographic photosensitive member; a process device actable on the photosensitive member; a toner container for containing toner for developing a latent image formed on the electrophotographic photosensitive member, the toner container having an opening for permitting supply of the toner to a developing portion therefrom; a sealing member for sealing the opening; and a seal mounting portion for permitting a sealing member a plurality of times.

Abstract: The present invention provides a process cartridge including an electrophotographic photosensitive member and process means acting on the electrophotographic phtosensitive member. Main parts constituting the photosensitive member and the process means are made of synthetic resin.

Abstract: A frame for a process cartridge, which is detachably mountable to an electrophotographic image forming apparatus and which comprises an electrophotographic photosensitive member and a process device or devices actable on the electrophotographic photosensitive member. The frame includes a base member having a mounting portion for mounting the process device or devices and an elastic sealing member for preventing leakage of a developer from the process cartridge when the process cartridge is assembled, wherein the base member and the elastic sealing member are integrally molded.

Abstract: An image recording apparatus capable of recording an image in different color tones and an ink sheet cassette suitable for use in such an image recording apparatus. The image recording apparatus, when used in combination with the ink sheet cassette, is capable of producing clear image in different recording color tones. The recording color tone can be changed by changing, in accordance with the color tone data, the condition of separation of the ink sheet from the recording medium.

Abstract: An external pack connector has a recess for receiving an external pack, a table member slidably mounted in the recess and biased oppositely to a direction of insertion of the external pack, a resilient contact member projecting into the recess, and a rotatable lever engaged with the table member and the contact member and rotatable against a spring force of the contact member.

Abstract: A keyboard switch comprises a key switch, a key top mounted on the key switch, stress transmission means for transmitting a depression force of the key top to a plurality of areas of the key top, and a common member for supporting the stress transmission means and engaging the key switch.

Abstract: One of two mutually engageable portions is mounted on a base and a first rolled paper holding unit is rotatably supported by the base. A second rolled paper holding unit is movable toward the first rolled paper holding unit and is supported by the base to allow rotational movement in a direction substantially perpendicular to the direction of movement toward the first rolled paper holding unit. The second rolled paper holding unit has the other of the mutually engageable means which resiliently engages with the one mutually engageable portion and cooperates with the first rolled paper holding unit to hold a rolled paper.