| 摘要 |
A process cartridge detachably mountable to a main assembly of an electro photographic image forming apparatus, includes an electrophotographic photos ensitive drum; developing roller for developing an electrostatic latent imag e formed on the electrophotographic photosensitive drum; drum frame supporti ng the electrophotographic photosensitive drum; a developing frame supportin g the developing roller, the developing roller being movable relative to the drum frame between a contacting position in which the developing roller is in contact with the electrophotographic photosensitive drum and a spacing po sition in which the developing roller is spaced from the electrophotographic photosensitive drum; a force receiving member, provided movably relative to the developing frame, for receiving an external force, wherein the force re ceiving member is capable of taking an operating position for moving the dev eloping frame from the contacting position to the spacing position by receiv ing the external force, and a stand-by position retracted from the operating position; an urging portion for urging the force receiving member from the stand-by position toward the operating position; and an engaging portion for engaging with the force receiving member to hold the force receiving member in the stand-by position against an urging force of the urging portion. |
