| 摘要 |
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes an electrophotographic photosensitive member; a developing roller contactable to the electrophotographic photosensitive member to develop an electrostatic latent image formed on the electrophotographic photosensitive member; a photosensitive member unit supporting the electrophotographic photosensitive member with a part of the electrophotographic photosensitive member exposed; a developing unit supporting the developing roller and movable relative to the photosensitive member unit between a contact position for contacting the developing roller and the electrophotographic photosensitive member with each other to develop the electrostatic latent image and a spaced position for spacing the developing roller and the electrophotographic photosensitive member from each other; a movable member for moving the developing unit between the contact position and the spaced position; and a protection cover for covering the part to protect the electrophotographic photosensitive member, the protection cover being engageable with the movable member to regulate movement of the movable member with the developing unit positioned in the spaced position.
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