Image forming apparatus

Details Image forming apparatus Image forming apparatus

2011-03-08

2011-03-08

Porta, David P (Department: 2884)

Electrophotography

Machine operation

Having power supply

C399S050000, C399S071000, C399S176000, C399S354000

Reexamination Certificate

active

07903993

ABSTRACT:
An image forming apparatus capable of maintaining cleaning performance of a cleaning brush and downsizing the apparatus main body. Transfer residual toner accumulated on the cleaning brush is transferred onto a photoreceptor by an electrostatic force, hence the cleaning brush becomes clean and the cleaning performance thereof improves. Therefore, the photoreceptor and a charging roller can be cleaned well by the cleaning brush over a long period of time, and the photoreceptor can be charged well by the charging roller over a long period of time. Moreover, because the transfer residual toner that is transferred from the cleaning brush onto the photoreceptor is recovered by a developing device, it is not necessary to provide the apparatus main body with a toner recovery portion that is specially designed for recovering the transfer residual toner, hence the apparatus main body can be downsized.

REFERENCES:
patent: 6292640 (2001-09-01), Suzuki
patent: 6799012 (2004-09-01), Shakuto et al.
patent: 2003/0039494 (2003-02-01), Shakuto et al.
patent: 2007/0065179 (2007-03-01), Fujita
patent: 2007/0172259 (2007-07-01), Fujita
patent: 2007/0280735 (2007-12-01), Nagatomo et al.
patent: 58023075 (1983-02-01), None
patent: 6-102800 (1994-04-01), None
U.S. Appl. No. 12/187,021, filed Aug. 6, 2008, Shono, et al.
U.S. Appl. No. 12/204,083, filed Sep. 4, 2008, Fujita, et al.

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