Patent ID: 8306460

Claim:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus including a driving member comprising: (i) a photosensitive drum; (ii) a developing roller configured and positioned (a) to develop an electrostatic latent image formed on said photosensitive drum and (b) to be rotatable about an axis thereof; (iii) a coupling member provided adjacent to one axial end of said developing roller, said coupling member including an engaging portion configured and positioned (a) to engage with the driving member to receive a driving force for rotating said developing roller and (b) to be movable in a direction crossing the axis of said developing roller relative to said developing roller; and (iv) an urging portion configured and positioned to urge said engaging portion in a direction crossing the axis of said developing roller to enable engagement of said engaging portion with the driving member when said process cartridge is inserted into the main assembly of the apparatus with said developing roller being in contact with said photosensitive drum.