| 摘要 |
A shutter pin usable with a developing cartridge which is detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a pin mounting portion for mounting the shutter pin to a cartridge frame of the developing cartridge; a shutter mounting portion for mounting, to the cartridge frame, a shutter member for covering a portion where a developing roller of the developing cartridge is exposed from the cartridge frame; and an electroconductive portion for establishing electric grounding connection with the main assembly of the apparatus when the developing cartridge is mounted to the main assembly of the apparatus.
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