Patent ID: 7206534

Claim:
A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, said process cartridge comprising: an electrophotographic photosensitive drum; a developing device configured and positioned to develop an electrostatic latent image formed on said electrophotographic photosensitive drum; a developer accommodating portion configured to accommodate a developer to be used for development of the electrostatic latent image; a developer supply opening, provided in said developer accommodating portion, configured and positioned to supply the developer from said developer accommodating portion to said developing device; a sealing member configured and positioned to unsealably seal said developer supply opening; and a grip member mounting portion configured and positioned to mount a first grip member or a second grip member configured and positioned to be gripped to pull out said sealing member to unseal said developer supply opening, wherein said grip member mounting portion is mounted to one end of said sealing member, wherein on said grip member mounting portion, said first grip member or said second grip member is mountable, wherein said first grip member is provided with a stopper portion configured and positioned to prevent said process cartridge from entering the main assembly of the apparatus by abutting a part of the main assembly when said process cartridge is being mounted to the main assembly of the apparatus with said sealing member mounted on said process cartridge, wherein said second grip member permits said process cartridge to enter the main assembly of the apparatus with said sealing member mounted on said process cartridge.