Electrophotography – Control of electrophotography process – Control of cleaning
Patent
1997-07-14
1998-08-04
Moses, R. L.
Electrophotography
Control of electrophotography process
Control of cleaning
399 99, G03G 2110
Patent
active
057909202
ABSTRACT:
A toner image processing apparatus performs a printing operation and a cleaning operation. A toner-attracting electrode includes first and second electrodes disposed closer to the charged surface of a photosensitive drum and outside of a path through which the light from the exposing device illuminates the charged surface. During the toner attracting operation, a toner-recovering device causes the toner-attracting electrode to attract the toner particles floating in the air surrounding the exposing device, and reversely charged toner particles and residual toner particles left on the photosensitive drum after the toner image is transferred to the print medium. During the toner-releasing operation, the toner-recovering device causes the toner-attracting electrode to release the attracted toner particles to the photosensitive drum. The toner-attracting operation is performed during the printing operation and the toner-releasing operation is performed during the cleaning operation.
REFERENCES:
patent: 4970552 (1990-11-01), Okamoto et al.
patent: 5059991 (1991-10-01), Morisawa
patent: 5270784 (1993-12-01), Nakane et al.
patent: 5390006 (1995-02-01), Wakabayashi et al.
patent: 5613174 (1997-03-01), Denton et al.
Patent Abstracts of Japan, Section P, Sec. No. 284, vol. 8, No. 1441, p. 162 and JP-A-59044066, Mar. 1984.
Teramura Osamu
Yajima Hiroyuki
Moses R. L.
Oki Data Corp.
Oki Data System Co., Ltd.
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