Process cartridge with mounting projections and image forming apparatus using such a process cartridge
December 26, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCopying machine Photoconductive element unit for laser printer or the like Image bearing member usable with image forming apparatus Image forming apparatus, process cartridge mountable within it and method for attaching photosensitive drum to process cartridge Process cartridge and image forming apparatus using same Image forming apparatus, process cartridge mountable within it and method for attaching photosensitive drum to process cartridge Electrophotographic image forming apparatus with a process cartridge mounting feature Keying method and apparatus Patent #: 5559589 InventorsAssigneeApplicationNo. 578337 filed on 12/26/1995US Classes:399/117, Drum mount399/111Process cartridge unitExaminersPrimary: Braun, Fred L.Attorney, Agent or FirmInternational ClassG03G 015/00Foreign Application Priority Data1994-12-26 JPAbstractA process cartridge detachably mountable to a main assembly of an electro-photographic image forming apparatus including a cartridge frame; an electro-photographic photosensitive drum; processing device actable on the electro-photographic photosensitive drum; a first projection projecting outward from one of opposite ends of the cartridge frame, coaxial with the electro-photographic photosensitive drum; a second projection projecting outward from the other of the opposite ends of the cartridge frame, coaxial with the electro-photographic photosensitive drum; wherein the first and second projections are different in size. | |
