Browse Prior Art Database

PHOTORECEPTOR REPAIR TECHNIQUE

IP.com Disclosure Number: IPCOM000022760D
Original Publication Date: 1976-Jan-31
Included in the Prior Art Database: 2004-Mar-26
Document File: 2 page(s) / 205K

Publishing Venue

Xerox Disclosure Journal

Abstract

It is well known that photoreceptors are easily damaged in field use as by paper scratching and handling damage which can occur when the photoreceptor is installed or service& Additionally, the photoreceptor may be damaged during the copying process as by foreign matter such as paper clips

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XEROX DISCLOSURE JOURNAL

PHOTORECEPTOR REPAIR TECHNIQUE Proposed Classification

C~F~ Hackett U~S, Cl, 96/L5

Int, CL G03g 5/04

It is well known that photoreceptors are easily damaged in
field use as by paper scratching and handling damage which

can occur when the photoreceptor is installed or service&
Additionally, the photoreceptor may be damaged during the
copying process as by foreign matter such as paper clips

which may come in contact with the photoreceptor surface

thereby gouging the photoconductor materiaL In either case
the damaged photoconductor is left with depressions on the
surface which show up as background thereby reducing copy
quality

Photoreceptor drums and/or belts containing scratches or

other such imperfections can be repaired easily by a
squeegee application of an appropriate photoconductor

material in a solvent solution. Specific materials
include selenium or organic photoconductor particles
in a polymeric binder such as polyvinyl carbazole in

combination with an appropriate solvent such as toluene
and cyclohexanone. The particulate photoconductor, binder,

and solvent solution is applied by a squeegee technique
and allowed to dry whereupon the treated area of the
photoreceptor is mended and would then again be receptive

to xerographic charging, exposure and development.

Volume 1 Number 1 January 1976 43

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44 XEROX DISCLOSURE JOURNAL

Volume 1 Number 1 January 1976

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