Patent ID: 8213831

Claim:
A process cartridge comprising: an electrophotographic photosensitive drum; a developing roller movable between a contact position in which said developing roller is in contact with said electrophotographic photosensitive drum to develop an electrostatic latent image formed on said electrophotographic photosensitive drum and a spaced position in which said developing roller is spaced from said electrophotographic photosensitive drum; a frame supporting said electrophotographic photosensitive drum and said developing roller; a spacing force receiving portion, which is movable between a projected position in which said spacing force receiving portion is projected from said frame and a retracted position in which said spacing force receiving portion is retracted from the projected position toward an inside of said frame, and which receives a first external force to move said developing roller from the contact position to the spaced position at the projected position; a projecting force receiving portion that receives a second external force to move said spacing force receiving portion from the retracted position to the projected position; and an amplifying mechanism for making a distance through which said spacing force receiving portion moves from the retracted position to the projected position larger than a distance through which said projecting force receiving portion is moved by the second external force.