Browse Prior Art Database

FIBER BRUSH CLEANING SYSTEM

IP.com Disclosure Number: IPCOM000025065D
Original Publication Date: 1983-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 100K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure relates to an improved toner removal apparatus for use in xerography. The apparatus comprises an electrically conductive fiber brush to which a voltage is applied which brush is rotated in contact with an insulative imaging surface to remove toner therefrom. An insulative detoning roll to which a voltage of the same polarity as applied to the brush but of a large value is rotated in contact with the conductive brush for removing toner therefrom.

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FIBER BRUSH CLEANING SYSTEM Proposed Donald A. Seanor Classification

US. Cl. 355/15 Int. Cl. G03g 21/00

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This disclosure relates to an improved toner removal apparatus for use in xerography. The apparatus comprises an electrically conductive fiber brush to which a voltage is applied which brush is rotated in contact with an insulative imaging surface to remove toner therefrom. An insulative detoning roll to which a voltage of the same polarity as applied to the brush but of a large value is rotated in contact with the conductive brush for removing toner therefrom.

A preclean charging device (not shown) is provided which serves to charge the toner on the surface prior to being contacted by the conductive brush. The polarity of the preclean device is opposite to that of the conductive brush and is chosen so that it is the same as the transfer discharge device. Thus, the test images residing on the photoreceptor which are not covered by the copy sheet are exposed twice to charges of the same polarity to thereby substantially narrow the charge distribu- tion on the toner in order to facilitate removal thereof by the biased conductive brush.

Volume 8 Number 3 May/June 1983

26 1

[This page contains 1 picture or other non-text object]

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FIBER BRUSH CLEANING SYSTEM (Cont'd)

A brush 90 is supported for rotation in contact with the photoconductive surface 10, a motor 91 being provided for effecting rotation. A source 92 of positive DC potential is operatively connected to the brush 90 such that an electrostatic field is...