Patent ID: 8160477

Claim:
A process cartridge detachably mountable to an image forming apparatus including an acting portion, the process cartridge comprising: a photosensitive drum; a charging roller that is urged in a direction in which the charging roller is brought into contact with the photosensitive drum to charge the photosensitive drum; a frame supporting the photosensitive drum and the charging roller; and a separation holding member that is movably provided on the frame and engaged with the charging roller, the separation holding member having (a) a locking portion that is locked to the frame to separate the charging roller from the photosensitive drum, and (b) an acted portion that is acted by the acting portion, when the process cartridge is mounted to an apparatus main body of the image forming apparatus, for releasing a lock of the frame and the locking portion to bring the charging roller into contact with the photosensitive drum, wherein the separation holding member comprises a penetration portion that penetrates an aperture provided in the frame, pokes out of the frame, and has, at a distal end thereof, the acted portion, and wherein the frame has a protruding portion provided in a periphery of the penetration portion so as to protrude from the frame.