Patent ID: 6169866
Filing Date: 2001-01-02
Classification: F16D,G03G

Abstract:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, wherein said main assembly includes a motor, a main assembly side driving rotatable member for receiving driving force from said motor, a main assembly positioning member, a hole which is substantially coaxial with said driving rotatable member, and a process cartridge mounting portion for mounting said process cartridge, said process cartridge comprising: an electrophotographic photosensitive drum; process means actable on said photosensitive drum; and a plurality of engageable portions engageable to said hole, said engageable portions being provided at and supported by an end of said electrophotographic photosensitive drum, wherein, when said driving rotatable member rotates with said engageable portions engaged with said hole, a rotational driving force is transmitted from said driving rotatable member to said photosensitive drum through engagement between said hole and said engageable portions; a stopper portion for abutting to the main assembly positioning member to stop a movement of said process cartridge beyond a predetermined distance in a direction substantially perpendicular to an axis of said photosensitive drum, when said process cartridge is mounted to the cartridge mounting portion, and said photosensitive drum receives the rotational driving force through said hole and said plurality of engageable portions.