Patent ID: 6934485

Claim:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, said process cartridge comprising: an electrophotographic photosensitive drum; a developing member configured and positioned to develop an electrostatic latent image formed on said electrophotographic photosensitive drum with a developer; a charging member configured and positioned to electrically charge said electrophotographic photosensitive drum; a drum frame supporting said charging member and said electrophotographic photosensitive drum; a developer accommodation frame having a developer accommodating portion configured to accommodate the developer; a developing frame supporting said developing member, said developing frame being movable relative to said drum frame and said developer accommodation frame; a first supporting frame supporting said drum frame and said developer accommodation frame adjacent one longitudinal end of said electrophotographic photosensitive drum, wherein said first supporting frame is positioned relative to the main assembly of the apparatus when said process cartridge is mounted to the main assembly of the apparatus; a second supporting frame supporting said drum frame and said developer accommodation frame adjacent the other longitudinal end of said electrophotographic photosensitive drum; a developing bias contact, provided on said first supporting frame, configured and positioned to receive a developing bias voltage applied to said developing member from the main assembly of the apparatus when said process cartridge is mounted to the main assembly of the apparatus; and a charging bias contact, provided on said first supporting frame, configured and positioned to receive a charging bias applied to said charging member from the main assembly of the apparatus when said process cartridge is mounted to the main assembly of the apparatus.