Patent ID: 8583007

Claim:
An electrophotographic image forming apparatus comprising: (i) a main assembly of said apparatus including: (i-i) a driving member configured and positioned to apply a driving force; and (ii) a process cartridge detachably mountable to said main assembly of said apparatus, said process cartridge including: (ii-i) a photosensitive drum; (ii-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; (ii-iii) a coupling member provided adjacent to one axial end of said developing roller, said coupling member including: (ii-iii-i) a driving force receiving portion configured and positioned (a) to engage with said driving member to receive the 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 (ii-iv) an urging portion configured and positioned to urge said driving force receiving portion in a direction crossing the axis of said developing roller to enable engagement of said driving force receiving portion with said driving member with an insertion of said process cartridge into said main assembly of said apparatus.