Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the process cartridge includes a frame; an electrophotographic photosensitive drum; developing means for developing an electrostatic latent image formed on the drum; a developer accommodating portion for accommodating a developer to be used for use of the development by the latent image; a developer supply opening, provided in the developer accommodating portion, for supplying the developer from the accommodating portion to the developing means; a sealing member for unsealably sealing the opening; a grip member, connected to one end of the sealing member, for being gripped when the sealing member is pulled to unseals the opening; a grip member mounting portion for mounting the grip member, the grip member mounting portion is separably mounted on the frame; wherein the grip member is provided with a stopper portion for preventing the cartridge from entering the main assembly by abutment to a part of t

Abstract: This process cartridge includes a frame body, a cartridge electrical contact, and a pushed portion provided on the frame body. The process cartridge is detachably attached to a main body of an electrophotographic image forming apparatus including a main body electrical contact, and a main body pusher. When the process cartridge is attached to the main body of the electrophotographic image forming apparatus, it is possible to achieve an electrically strong connection of the cartridge electrical contact to the main body electrical contact by the pushed portion being pushed by the main body pusher. Owing to this simple structure, it is possible to realize the electrical connection of the cartridge electrical contact to the main body electrical contact.

Abstract: A cleaning apparatus includes a cleaning member for cleaning off toner from an image bearing member, a support member for supporting the cleaning member, and a receiving portion for receiving the toner cleaned off by the cleaning member, the receiving portion having a cleaning frame, and a connecting portion for connecting both end surfaces of the cleaning frame in a longitudinal direction of the cleaning member, in which the support member is provided with a bent portion bent on a deeper side of the cleaning frame, and the connecting portion is below an upper portion of the receiving portion and above a lower surface of the bent portion.

Abstract: Provided are a process cartridge and an image forming apparatus having the process cartridge. The process cartridge is constituted as one of at least two types of cartridges, a first cartridge and a second cartridge, and used selectively by being made detachably attachable to a main body of an identical image forming apparatus. The first cartridge includes: a cleaning unit which removes toner remaining on a surface of a medium; a cleaning frame which receives toner recovered by the cleaning unit and has an opening; and a waste toner carrying unit which is provided in the opening and carries the toner in the cleaning frame. The second cartridge includes: a cleaning unit which removes toner remaining on a surface of a medium; a cleaning frame which receives toner recovered by the cleaning unit and has an opening; and a sealing member which seals the opening without the waste toner carrying unit being provided in the opening.

Abstract: An assembling method for a developing roller usable with a developing device, the developing roller including a developer carrying member in the form of a hollow cylinder, a flange member provided at an end of the developer carrying member, and a magnet provided in the developer carrying member, the method including an inserting step of inserting the magnet having at least one projection into an inside through an opening of the developer carrying member; an abutting step of abutting the at least one projection to an inside surface of the cylinder; and an engaging step of engaging the flange member with the opening by penetrating the flange member through a shaft of the magnet projected out of the opening.

Abstract: A simple method for remanufacturing a process cartridge which includes removing a first cover, removing a second cover, separating frames, removing a fixing pin, removing a developing roller, refilling developer, positioning provisionally a supporting frame to a developing frame, attaching the developing roller, attaching the supporting frame, connecting a first frame and connecting a second frame.

Abstract: A method of remanufacturing a process cartridge includes a step of removing a pin to thereby separate a drum unit and a developing container, a step of separating a developing frame and a developer frame from each other to thereby separate the developing container, a step of resupplying the developer to a developer containing portion of the developer frame, a step of superposing a reseal member on end portion seal members provided at lengthwise one end and other end of a developer supply opening for supplying the developer contained in a developer containing portion to a developing roller, and interposing the reseal member on each of widthwise one end and other end of the developer supply opening along the lengthwise direction of the developer supply opening, and reuniting the developing frame and the developer frame, and a step of reuniting the reconstructed developing container and the drum unit.

Abstract: This process cartridge comprises a frame body, a cartridge electrical contact, and a pushed portion provided on the frame body. The process cartridge is detachably attached to a main body of an electrophotographic image forming apparatus comprising a main body electrical contact, and main body pushing means. When the process cartridge is attached to the main body of the electrophotographic image forming apparatus, it is possible to achieve electrically strong connection of the cartridge electrical contact to the main body electrical contact by the pushed portion being pushed by the main body pushing means. Owing to this simple structure, it is possible to realize the electrical connection of the cartridge electrical contact to the main body electrical contact.

Abstract: A cleaning apparatus including a cleaning member for cleaning off toner from an image bearing member, a support member for supporting the cleaning member, and a receiving portion for receiving the toner cleaned off by the cleaning member, the receiving portion having a cleaning frame, and a connecting portion for connecting both end surfaces of the cleaning frame in a longitudinal direction of the cleaning member, in which the support member is provided with a bent portion bent on a deeper side of the cleaning frame, and the connecting portion is below an upper portion of the receiving portion and above a lower surface of the bent portion.

Abstract: A method of remanufacturing a process cartridge includes a step of removing a pin to thereby separate a drum unit and a developing container, a step of separating a developing frame and a developer frame from each other to thereby separate the developing container, a step of resupplying the developer to a developer containing portion of the developer frame, a step of superposing a reseal member on end portion seal members provided at lengthwise one end and other end of a developer supply opening for supplying the developer contained in a developer containing portion to a developing roller, and interposing the reseal member on each of widthwise one end and other end of the developer supply opening along the lengthwise direction of the developer supply opening, and reuniting the developing frame and the developer frame, and a step of reuniting the reconstructed developing container and the drum unit.