Patent ID: 8213828

Claim:
An electrophotographic image forming apparatus including a main assembly of the apparatus to which a process cartridge is detachably mountable, said apparatus comprising: a movable member including a mounting portion for detachably mounting said process cartridge, said movable member being movable from an outside toward an inside of the main assembly of the apparatus while supporting the process cartridge; an output contact provided in said main assembly of the apparatus; and an intermediary electrical contact configured and positioned to supply a bias voltage received by said output contact to the process cartridge, said intermediary electrical contact being disposed on said movable member so that when the process cartridge is supported by said movable member, the intermediary electrical contact is at a downstream side of said mounting portion with respect to a moving direction of said movable member from the outside toward the inside of said apparatus, and being elastically deformable in the moving direction, wherein the process cartridge includes an electrophotographic photosensitive drum, a first frame supporting the electrophotographic photosensitive drum, a developing roller that develops an electrostatic latent image formed on the electrophotographic photosensitive drum, a second frame supporting the developing roller, the second frame being rotatable relative to the first frame, an input electrical contact which is provided at a leading end of the second frame with respect to the moving direction in the state that the process cartridge is supported on said movable member and which is contacted to said intermediary electrical contact in the state that the process cartridge is supported on said movable member, and a cartridge side contact portion which is provided on the first frame at a position upstream of the input electrical contact with respect to the moving direction and which contacts said movable member when the input electrical contact contacts said intermediary electrical contact and is elastically urged by said intermediary electrical contact.