Cleaning device and image forming apparatus using the same

Details Cleaning device and image forming apparatus using the same Cleaning device and image forming apparatus using the same

2006-04-13

2010-12-28

Gray, David M (Department: 2852)

Electrophotography

Internal machine environment

Particle or contaminant control

C399S297000, C399S302000, C399S353000, C399S354000, C399S357000, C399S359000, C399S360000

Reexamination Certificate

active

07860429

ABSTRACT:
A cleaning device, comprises: a plurality of brush rolls being contact with a surface of the image carrier that a toner is attached; and a biasing unit applying bias voltages having different polarities from each other to at least two of the brush rolls, the plurality of brush rolls including a first brush roll and a second brush roll, a bias having a polarity opposite to a normal polarity of the toner being applied to the first brush roll, a bias having the same polarity as the normal polarity of the toner being applied to the second brush roll, a surface circulating speed of the first brush roll being set to be higher than the surface circulating speed of the second brush roll.

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English translation of JP pub # 11-219048 Asakura, et al. published Aug. 10, 1999.
English translation of Ishikawa et al. (JP pub 2005-250039).

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