Image forming apparatus and method with variable...

Details Image forming apparatus and method with variable... Image forming apparatus and method with variable...

2008-04-29

2008-04-29

Ngo, Hoang (Department: 2852)

Electrophotography

Image formation

Photoconductive member

C399S053000

Reexamination Certificate

active

11340543

ABSTRACT:
An image forming apparatus includes a photosensitive drum, a developing roller, a photosensitive drum driving unit, a developing roller driving unit, and a driving control unit. An electrostatic latent image is formed on the photosensitive drum. The developing roller is disposed facing the photosensitive drum and supplies a developing agent to the electrostatic latent image formed on the photosensitive drum to develop the electrostatic latent image to developing agent image. The photosensitive drum driving unit rotatably drives the photosensitive drum. The developing roller driving unit rotatably drives the developing roller. The driving control unit controls the photosensitive drum driving unit and controls the developing roller controlling unit so that a circumferential speed ratio of the developing roller with respect to the photosensitive drum becomes a circumferential speed ratio which corresponds to a circumferential speed of the photosensitive drum.

REFERENCES:
patent: 2002/0098013 (2002-07-01), Kamimura
patent: 06-35312 (1994-02-01), None
patent: 08-146768 (1996-06-01), None
patent: 9-146325 (1997-06-01), None
patent: 10-10856 (1998-01-01), None
patent: 2001-194886 (2001-07-01), None
patent: 2001-356590 (2001-12-01), None
patent: 2002-72670 (2002-03-01), None

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