Patent ID: 6738589
Filing Date: 2004-05-18
Classification: G03G

Abstract:
A process cartridge detachably mountable to an electrophotographic image forming apparatus main body, said process cartridge comprising:an electrophotographic photosensitive drum; process means for acting on said electrophotographic photosensitive drum; a frame configured and positioned to hold said electrophotographic photosensitive drum; convex portions, which are provided coaxially with an axis of said electrophotographic photosensitive drum and protrude from one side and from the other side of said frame, so as to position said process cartridge in the electrophotographic image forming apparatus main body when said process cartridge is mounted to the electrophotographic image forming apparatus main body; and a concave portion provided in an upper part of said frame and recessed in said one side thereof, wherein said concave portion allows said process cartridge to be inserted into the electrophotographic image forming apparatus main body without abutting against a protrusion provided in the electrophotographic image forming apparatus main body during an inserting process of inserting said process cartridge into the electrophotographic image forming apparatus main body.