Patent ID: 7477865

Claim:
A process cartridge detachably mountable to a main assembly of a electrophotographic image forming apparatus, said main assembly including a rotatable drum driving force transmitting portion and a rotatable main assembly coupling portion, said process cartridge comprising: a electrophotographic photosensitive drum; a developing roller configured and positioned to develop an electrostatic latent image formed on said electrophotographic photosensitive drum with a developer while being in contact with said electrophotographic photosensitive drum; a drum unit configured and positioned to support said electrophotographic photosensitive drum, wherein said drum unit is positioned relative to the main assembly of the apparatus when said process cartridge is set in the main assembly of the apparatus; a developing unit supporting said developing roller and movable relative to said drum unit between a contact position in which said developing roller and said electrophotographic photosensitive drum are in contact to each other to develop the electrostatic latent image and a spaced position in which said developing roller and said electrophotographic photosensitive drum are spaced away from each other; a drum driving force receiving portion, engageable with the drum driving force transmitting portion in a state in which said drum unit is positioned in the main assembly of the apparatus, for receiving a drum driving force for rotating said electrophotographic photosensitive drum from the drum driving force transmitting portion, wherein said drum driving force receiving portion is provided in said drum unit; a cartridge coupling portion, engageable with the main assembly coupling portion in a state in which said drum unit is positioned in the main assembly of the apparatus, for receiving a rotational driving force from the main assembly coupling portion, said cartridge coupling portion being provided in said drum unit; and a movable member movable relative to said developing unit by receiving the rotational driving force from said cartridge coupling portion to move said developing unit between the contact position and the spaced position.