Electrophotography – Having particular structure – Modular or displaceable
Patent
1996-12-30
1999-07-20
Braun, Fred L.
Electrophotography
Having particular structure
Modular or displaceable
399117, G03G 1500, G03G 2100
Patent
active
059266724
ABSTRACT:
A photosensitive drum includes a cylindrical member having a photosensitive body disposed thereon, and first and second helical gears arranged axially side-by-side on one end of the cylindrical member. The first helical gear is disposed axially outward of the second helical gear, and the first helical gear has an outer diameter greater than an outer diameter of the second helical gear. The first helical gear meshes with a drive gear to rotatingly drive the drum. A sleeve gear of a developing sleeve is selectively engaged with one of the first and second helical gears, depending upon a kind of toner used.
REFERENCES:
patent: 4829335 (1989-05-01), Kanemitsu et al.
patent: 4837635 (1989-06-01), Santos
patent: 4975743 (1990-12-01), Surti
patent: 5019861 (1991-05-01), Surti
patent: 5047803 (1991-09-01), Kanoto
patent: 5095335 (1992-03-01), Watanabe et al.
patent: 5126800 (1992-06-01), Shishido et al.
"Signal Processing of HDTV, II,", Proceedings of the Third International Workshop on HDTV, pp. 431-442, (Sep. 1989).
"Review of Standards for Electronic Imaging for Facsimile Systems", Journal of Electronic Imaging, pp. 5-21, (Jan. 1992).
Ikemoto Isao
Kobayashi Kazunori
Mizutani Morikazu
Nishibata Atsushi
Noda Shinya
Braun Fred L.
Canon Kabushiki Kaisha
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