Photocopying – Including fiber optics
Patent
1982-11-01
1984-07-03
Prescott, A. C.
Photocopying
Including fiber optics
355 14CH, 355 15, 15 15R, 118652, 430125, G03G 1500
Patent
active
044576153
ABSTRACT:
An electrically conductive brush is provided for effecting simultaneous charging and cleaning of a photoreceptor surface. The brush is constructed of alternate conductive and non-conductive segments which causes one conductive segment which is being used for charging to be electrically isolated from another conductive segment which is being used for cleaning. Thus, different voltages can be simultaneously applied to each of the segments without adversely affecting the operation of the other. A single detoning roller is also provided for removing toner particles from the brush, the detoning roller being positioned adjacent the cleaning segment to allow for the application thereto of a lower voltage than would be required if the detoning roller was used in conjunction with a charging brush of the prior art or with the charging segment of the brush of this invention.
REFERENCES:
patent: 2774921 (1956-12-01), Walkup
patent: 3780391 (1973-12-01), Leenhouts
patent: 3781107 (1973-12-01), Ruhland
patent: 3847480 (1974-11-01), Fisher
patent: 4110035 (1978-08-01), Kamata
patent: 4123154 (1978-10-01), Fisher
patent: 4174903 (1979-11-01), Snelling
patent: 4336565 (1982-06-01), Murray et al.
patent: 4361922 (1982-12-01), Karal
patent: 4395114 (1983-07-01), Ura et al.
Prescott A. C.
Xerox Corporation
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