Electrophotography – Having particular structure – Modular or displaceable
Patent
1995-05-31
1997-02-11
Braun, Fred L.
Electrophotography
Having particular structure
Modular or displaceable
399167, G03G 1500, G03G 2100
Patent
active
056026234
ABSTRACT:
A process cartridge removably mountable to an image forming apparatus includes an image bearing member having a photosensitive drum including a cylindrical member having a photosensitive layer thereon, a first gear provided at one end of the cylindrical member in an axial direction thereof, and a helical gear as a second gear provided at the one end of the cylindrical member adjacent to and outside of the first gear in the axial direction of the cylindrical member and having a diameter larger than a diameter of the first gear. The first gear and the helical gear are integrally formed as a gear portion having a through-bore portion with an inner diameter that varies along its axial length. Accordingly, the present invention provides a smoothly rotating image bearing member for producing high quality images.
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Ikemoto Isao
Kobayashi Kazunori
Mizutani Morikazu
Nishibata Atsushi
Noda Shinya
Braun Fred L.
Canon Kabushiki Kaisha
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