Patent ID: 8135304

Claim:
A process cartridge comprising: an electrophotographic photosensitive drum; a drum flange fixed to one longitudinal end of said electrophotographic photosensitive drum; a coupling member that receives a rotating force for rotating said electrophotographic photosensitive drum and transmits the rotating force to said electrophotographic photosensitive drum through said drum flange; a first regulating portion that regulates movement of said electrophotographic photosensitive drum in a direction from the one longitudinal end of said electrophotographic photosensitive drum to the other longitudinal end of said electrophotographic photosensitive drum; and a second regulating portion that regulates movement of said electrophotographic photosensitive drum in a direction from the other longitudinal end of said electrophotographic photosensitive drum to the one longitudinal end of said electrophotographic photosensitive drum, wherein said drum flange has a first regulated portion capable of being regulated by said first regulating portion, a second regulated portion capable of being regulated by said second regulating portion, and a connecting portion that is connected with said coupling member so that a rotational axis of said coupling member is inclineable relative to a rotational axis of said drum flange.