Photosensitive-member driving mechanism

Details Photosensitive-member driving mechanism Photosensitive-member driving mechanism

2008-05-27

2010-10-05

Ngo, Hoang (Department: 2852)

Electrophotography

Image formation

Photoconductive member

Reexamination Certificate

active

07809309

ABSTRACT:
It is an object to prevent distortions and deviations of images caused by the eccentricity of a driven gear mounted to a rotational shaft of a photosensitive drum. There are provided a driving gear which is secured to a rotational shaft of a rotational driving power source and is rotated at a constant peripheral speed, a driven gear secured coaxially to a rotational shaft of a cylindrical-shaped photosensitive member, a phase control gear having the same diameter as that of the driven gear and having the same rotational speed variation characteristic as that of the driven gear, and a transmission gear, and a driving force from the driving gear is transmitted to the driven gear through the phase control gear and the transmission gear.

REFERENCES:
patent: 5995802 (1999-11-01), Mori et al.
patent: 6829457 (2004-12-01), Ryuzaki et al.
patent: 07-261499 (1995-10-01), None
patent: 10-78734 (1998-03-01), None
patent: 2002-122188 (2002-04-01), None
patent: 2002-189383 (2002-07-01), None
patent: 2004-264525 (2004-09-01), None
patent: 2007-120609 (2007-05-01), None

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