Patent ID: 6032002
Filing Date: 2000-02-29
Classification: G03G

Abstract:
A shutter for a developing cartridge for developing an electrostatic latent image formed on an electrophotographic photosensitive member, the developing cartridge being detachably mountable relative to a main assembly of an electrophotographic image forming apparatus, said shutter comprising:a shutter member; anda developing cartridge discriminating portion provided on said shutter member and capable of being in a fitting relationship with one of a plurality of main assembly side discriminating portions provided in the main assembly when said developing cartridge discriminating portion positionally aligns with said one of said plurality of main assembly side discriminating portions, upon mounting of the developing cartridge to the main assembly,wherein said shutter is movable between a covering position for covering a portion through which a developing member is exposed from a cartridge frame and a retracted position for exposing the developing member from the cartridge frame.