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TEXTURING OF ORGANIC PHOTORECEPTOR SURFACES BY LASER ABLATION TO ASSIST BLADE CLEANING

IP.com Disclosure Number: IPCOM000026325D
Original Publication Date: 1991-Apr-30
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 60K

Publishing Venue

Xerox Disclosure Journal

Abstract

A method for the post-processing of organic photoconductors that yields a surface topology which enhances blade cleaning during normal operation is disclosed. The method comprises selectively heating the surface of the organic photoconductor device with a laser until a melt is achieved then cooling to re-solidify the device to afford a roughened surface texture. The texturing process may be accompiished patternwise or randomly by scanning the surface of the photoconductor with a focused pulse or continuous wave laser operated above the ablation threshold. The conditions of scanning, heating, melting and cooling may be carefully controlled to achieve a surface texture that exhibits optimal blade cleaning properties. An advantage of the method is that it does not adversely alter the electrical or physical properties of the operational photocondqctor. Textured photoconductors prepared by this method reduce friction between the cleaning blade and the photoconductor and consequently reduce the impaction of small particles, such as toner, on the photoconductor surface. Extended photoconductor life and high print quality are other improvements indirectly realized from this method.

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XEROX DISCLOSURE JOURNAL

TEXTURING OF ORGANIC Proposed Classification PHOTORECEPTOR SURFACES BY
LASER ABLATION TO
ASSIST
BLADE CLEANING
Richard W. Bigelow

U.S. C1. 430/129

Int. C1. G03g 05/04

A method for the post-processing of organic photoconductors that yields a surface topology which enhances blade cleaning during normal operation is disclosed. The method comprises selectively heating the surface of the organic photoconductor device with a laser until a melt is achieved then cooling to re-solidify the device to afford a roughened surface texture. The texturing process may be accompiished patternwise or randomly by scanning the surface of the photoconductor with a focused pulse or continuous wave laser operated above the ablation threshold. The conditions of scanning, heating, melting and cooling may be carefully controlled to achieve a surface texture that exhibits optimal blade cleaning properties. An advantage of the method is that it does not adversely alter the electrical or physical properties of the operational photocondqctor. Textured photoconductors prepared by this method reduce friction between the cleaning blade and the photoconductor and consequently reduce the impaction of small particles, such as toner, on the photoconductor surface. Extended photoconductor life and high print quality are other improvements indirectly realized from this method.

XEROX DISCLOSURE JOURNAL - Voi. 16, No. 2 March/Aprii1991 141

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