Patent ID: 6185390
Filing Date: 2001-02-06
Classification: G03G

Abstract:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, comprising;a cartridge frame;an electrophotographic photosensitive drum;a cartridge coupling member for receiving a driving force for rotating said electrophotographic photosensitive drum from the main assembly of said apparatus when said process cartridge is mounted to the main assembly of said apparatus, wherein said coupling member is provided on one longitudinal end of said electrophotographic photosensitive drum, wherein said cartridge coupling member is disposed on a surface of said cartridge frame facing in a direction crossing a mounting direction of said process cartridge into the apparatus;a charging member for charging said electrophotographic photosensitive drum;a developing member for developing a latent image formed on said electrophotographic photosensitive drum;a charging bias contact for receiving a charging bias to be applied to said charging member from the main assembly of said apparatus when said process cartridge is mounted to the main assembly of said apparatus;a developing bias contact for receiving a developing bias to be applied to said developing member from the main assembly of said apparatus when said process cartridge is mounted to the main assembly of said apparatus; anda detecting contact for notifying the main assembly of said apparatus that said process cartridge is mounted to the main assembly of said apparatus;wherein said charging bias contact, said developing bias contact and said detecting contact are provided on a bottom surface, when said process cartridge is mounted to the main assembly of said apparatus, of said cartridge frame adjacent said one longitudinal end of said electrophotogrpahic photosensitive drum, and said charging bias contact, said developing contact and said detecting contact are exposed from said cartridge frame.