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Process cartridge with mounting projections and image forming apparatus using such a process cartridge

  • US 5,907,751 A
  • Filed: 12/26/1995
  • Issued: 05/25/1999
  • Est. Priority Date: 12/26/1994
  • Status: Expired due to Term
First Claim
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1. A process cartridge detachably mountable to a main assembly of an electro-photographic image forming apparatus, said process cartridge comprising:

  • a cartridge frame;

    an electro-photographic photosensitive drum;

    processing means for acting on said electro-photographic photosensitive drum;

    a first projection projecting outwardly from one of opposite ends of said cartridge frame, and coaxially with said electro-photographic photosensitive drum; and

    a second projection projecting outwardly from the other of said opposite ends of said cartridge frame, and coaxially with said electro-photographic photosensitive drum,wherein said first projection and said second projection are cylindrical, and a diameter of said second projection is larger than a diameter of said first projection.

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