Patent ID: 6480687
Filing Date: 2002-11-12
Classification: G03G

Abstract:
A process cartridge detachably mountable to a main body of an electrophotographic image forming apparatus, said process cartridge comprising:an electrophotographic photosensitive drum; process means acting on said electrophotographic photosensitive drum; a cartridge frame; a shaft through which said electrophotographic photosensitive drum is supported by said cartridge frame, said shaft extending through said electrophotographic photosensitive drum; a first bearing member which is arranged in said cartridge frame and rotatably supports one end of said shaft projected from one end of said photosensitive drum in a longitudinal direction of said photosensitive drum, and which has a first exposure portion exposed from said cartridge frame; and a second bearing member which is arranged in said cartridge frame and rotatably supports the other end of said shaft projected from the other end of said photosensitive drum in the longitudinal direction of said photosensitive drum, and which has a second exposure portion exposed from said cartridge frame; wherein said first exposure portion of said first bearing member comes in contact with a first main body positioning portion formed in said main body and is positioned, and said second exposure portion of said second bearing member comes in contact with a second main body positioning portion formed in said main body and is positioned when said process cartridge is mounted to said main body.