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IMPROVED DISCHARGE BAR FOR POST- DEVELOPMENT IMAGE CLEANING

IP.com Disclosure Number: IPCOM000024172D
Original Publication Date: 1979-Dec-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 48K

Publishing Venue

Xerox Disclosure Journal

Abstract

In electrophotographic printing,. it is frequently desirable -to remove any toner particles adhering to the background regions of the photoreceptor. As shown, roller 10 attracts the background particles from photoreceptor 12. These particles are, in turn, attracted to reclaim roller 14 for subsequent reuse. Due to this process, a charge is built up on the carriers. In order to enhance the efficiency of the process, it is desirable to provide a means for discharging this charge. To this end, a conductive cylindrical wire brush 16, spaced from photoreceptor 12, contacts the carrier particles in order to provide a discharge therefor. Brush 16 may be grounded or electrically biased. Alternatively, as shown in Figure 2, a linear wire brush 18 may be employed in lieu of the brush 16.

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KEROX DISCLOSURE JOURNAL

IMPROVED DISCHARGE BAR FOR POST- Proposed DEVELOPMENT IMAGE CLEANING Classification

U.S. C1. 118/652 Int. C1. G03g 15/06

F/G. / FIG. 2

In electrophotographic printing,. it is frequently desirable -to remove any toner particles adhering to the background regions of the photoreceptor. As shown, roller 10 attracts the background particles from photoreceptor 12. These particles are, in turn, attracted to reclaim roller 14 for subsequent reuse. Due to this process, a charge is built up on the carriers. In order to enhance the efficiency of the process, it is desirable to provide a means for discharging this charge. To this end, a conductive cylindrical wire brush 16, spaced from photoreceptor 12, contacts the carrier particles in order to provide a discharge therefor. Brush 16 may be grounded or electrically biased. Alternatively, as shown in Figure 2, a linear wire brush 18 may be employed in lieu of the brush 16.

Volume 4 Number 6 November/December 1979 715

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November/December 6 Number 4 Volume XEROX 716 DISCLOSURE JOURNAL 1979

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