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CLEANERLESS XEROGRAPHY

IP.com Disclosure Number: IPCOM000025266D
Original Publication Date: 1984-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 57K

Publishing Venue

Xerox Disclosure Journal

Abstract

A system is disclosed for realizing a cost savings in a xerographic copier by omitting the standard cleaning module. This is accomplished by using highly conductive toners which will acquire very high charge levels in the first particles to contact a latent image and will therefore, in something close to a monolayer, substantially neutralize that image. Because of the high charge levels of the toners, transfer to "treated" paper is very complete while being relatively RH insensitive.

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XEROX DISCLOSURE JOURNAL

CLEANERLESS XEROGRAPHY Proposed Gilbert A. Aser Classification

U.S. CI. 355/3R Int. C1. G03g 15/00

A system is disclosed for realizing a cost savings in a xerographic copier by omitting the standard cleaning module. This is accomplished by using highly conductive toners which will acquire very high charge levels in the first particles to contact a latent image and will therefore, in something close to a monolayer, substantially neutralize that image. Because of the high charge levels of the toners, transfer to "treated" paper is very complete while being relatively RH insensitive.

With very substantial transfer of the conductive toners, there is no need to clean residual toner from the photoconductor in the areas where transfer occurs, however, toner would need to be removed from inter-copy gaps and the outside edges of the copy paper. One way to prevent development around the copy paper is with an inter-copy lamp between the exposure module and the development module and the adding of edge fadeout lamps. Edge fadeout lamps would be required only if there is some area outside the edges of the copy paper which will present the developer module with a developable potential. For example, for machines that are designed for 8 %'' width sheets, it would be easy to paint the platen white just inside that width and thereby eliminate any requirement for edge fadeout lamps.

Volume 9 Number 2 March/April 1984 153

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