Electrophotography – Image formation – Combined or plural functions by single component
Reexamination Certificate
2007-02-22
2009-02-03
Gray, David M (Department: 2852)
Electrophotography
Image formation
Combined or plural functions by single component
Reexamination Certificate
active
07486913
ABSTRACT:
An apparatus and method for cleaning a plurality of drums in an image forming apparatus includes applying a first bias to each of a plurality of disturbing members, each disturbing member associated with a corresponding drum of a plurality of drums. While performing an image forming operation wherein at least one of the plurality of drums is not use, the bias is changed of a disturbing member corresponding to at least one of the plurality of drums not used in performing the image forming operation from the first bias to a second bias different from the first bias.
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Takeshi Watanabe, U.S. PTO Office, U.S. Appl. No. 11/091,600, Mar. 23, 2007, 11 pages.
T. Watanabe, U.S. PTO Notice of Alowance and Fee(s) Due, U.S. Appl. No. 11/091,600, Oct. 31, 2007, 8 pages.
Takahashi Masashi
Watanabe Takeshi
Yoshida Minoru
Foley & Lardner LLP
Gray David M
Kabushiki Kaisha Toshiba
Toshiba Tec Kabushiki Kaisha
Villaluna Erika J.
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