Patent ID: 8139979

Claim:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus including a movable member movable from outside of the main assembly of the apparatus to an inside thereof while carrying said process cartridge, said process cartridge comprising: 1) an electrophotographic photosensitive drum; 2) a frame for supporting said electrophotographic photosensitive drum; 3) a developing roller for developing an electrostatic latent image formed on said electrophotographic photosensitive drum with a developer; 4) a developer supplying roller for supplying the developer to said developing roller; 5) a portion-to-be-supported for being supported by the movable member to support said process cartridge on the movable member; 6) a first portion-to-be-positioned, provided on one end side of said process cartridge with respect to a longitudinal direction of said electrophotographic photosensitive drum, for being positioned to a first main assembly side positioning portion provided in the main assembly of the apparatus in a direction crossing the longitudinal direction of said electrophotographic photosensitive drum; 7) a second portion-to-be-positioned, provided on an other end side of said process cartridge with respect to the longitudinal direction of said electrophotographic photosensitive drum, for being positioned to a second main assembly side positioning portion provided in the main assembly of the apparatus in the direction crossing the longitudinal direction of said electrophotographic photosensitive drum; 8) a portion-to-be-urged, provided on an upper surface of said frame adjacent the other end side of said process cartridge, for receiving an elastic downward force of a first main assembly side elastic member provided in the main assembly of the apparatus to urge said second portion-to-be-positioned to the second main assembly side positioning portion, in a state in which said first portion-to-be-positioned is positioned to the first main assembly side positioning portion; and 9) a cartridge side developer supplying roller bias contact provided exposed and adjacent the other end side of said process cartridge for receiving a supplying roller bias voltage to be supplied to said developer supplying roller from an intermediary electrical contact provided on the movable member, said cartridge side developer supplying roller bias contact facing obliquely downward, wherein said cartridge side developer supplying roller bias contact is urged by the intermediary electrical contact obliquely upward.