Patent ID: 7570900

Claim:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus including an openable member movable between a closing position for closing an opening in the apparatus and an open position for opening the opening, a guiding member, a main assembly positioning portion, and a main assembly movable member movable in interrelation with movement of the openable member, said process cartridge comprising: an electrophotographic photosensitive member; process means actable on said electrophotographic photosensitive member; a cartridge positioning portion, engageable with the main assembly positioning portion that positions said process cartridge relative to the main assembly; a cartridge movable member movable by movement of the main assembly movable member, wherein when said process cartridge, upon mounting of said process cartridge to the main assembly of the apparatus through the opening while being guided by the guiding member, stops at a position upstream, with respect to a process cartridge mounting direction, of an image formation position where said cartridge positioning portion is engaged with the main assembly positioning portion, said cartridge movable member is moved by movement of the main assembly movable member to contact said guiding member, by which said cartridge movable member receives, from the guiding member, a force for moving said process cartridge downstream with respect to the mounting direction.