Image forming apparatus including drive transmission member...

Details Image forming apparatus including drive transmission member... Image forming apparatus including drive transmission member...

2006-09-15

2009-12-01

Royer, William J (Department: 2852)

Electrophotography

Image formation

Development

C399S223000, C399S228000

Reexamination Certificate

active

07627271

ABSTRACT:
An image forming apparatus includes: a photosensitive member; a plurality of development devices attachable to and detachable from a main body of the image forming apparatus, a motor; and a drive transmission member. Each development device includes a development roller for forming a toner image on a surface of the photosensitive member. The motor is rotatable forward and backward, for driving the development roller. The drive transmission member is disposed between the motor and the development roller. The drive transmission member includes a plurality of gears, a plurality of shafts and a plurality of one-way clutches. An air gap is provided in at least one engagement portion where the gears engage with the shafts.

REFERENCES:
patent: 6832063 (2004-12-01), Ahn et al.
patent: 7177573 (2007-02-01), Kimura et al.
patent: 7376373 (2008-05-01), Kim et al.
patent: 2002-278209 (2002-09-01), None

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