Patent ID: 6954601

Claim:
A process cartridge, detachably mountable to a main body of an electrophotographic image forming apparatus, the electrophotographic image forming apparatus having a main body guide, a first support member, a second support member, and a main body electrode member, the process cartridge comprising: an electrophotographic photosensitive drum; process means for performing a process on said electrophotographic photosensitive drum; a cartridge guide configured and positioned to engage with the main body guide to guide said process cartridge in an axial direction of said electrophotographic photosensitive drum if said process cartridge is mounted in the main body of the apparatus; a first fit portion provided on one end side of said electrophotographic photosensitive drum in the axial direction of said electrophotographic photosensitive drum to engage with the first support member in the axial direction, if said process cartridge is mounted in the body of the apparatus, to position said process cartridge; a second fit portion provided on the one end side of said electrophotographic photosensitive drum in the axial direction of said electrophotographic photosensitive drum to begin fitting with the second support member in the axial direction, after starting of fitting of the first fit portion and the first support member when said process cartridge is mounted in the body of the apparatus, to position said process cartridge, and a cartridge electric contact provided on the one end side of said electrophotographic photosensitive drum to begin fitting with the main body electrode member, after starting of fitting of said second fit portion and the second support member when said process cartridge is mounted in the body of the apparatus, to receive voltage being supplied to said process means from the main body of the apparatus, and wherein the one end side of said electrophotographic photosensitive drum is a tip end side in a direction in which said process cartridge is mounted in the body of the apparatus.