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LAYERED ELECTROPHOTOGRAPHIC IMAGING MEMBERS EMPLOYING AS2SE3 GENERATOR LAYERS

IP.com Disclosure Number: IPCOM000026453D
Original Publication Date: 1992-Feb-29
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 57K

Publishing Venue

Xerox Disclosure Journal

Abstract

Layered electrophotographic imaging members often comprise a conductive layer, a charge generation layer and a charge transport layer. Examples of such layered electrophotographic imaging members may be found in U. S. Patent 4,265,990. It has been discovered that when the conductive layer comprises vapor deposited aluminum having an aluminum oxide surface, the charge generation layer comprises As2Se3, and the charge transport layer comprises diamine charge transport compounds dispersed in a polycarbonate resin, charge injection and dark decay of the imaging member increases with cycling. This decline in performance may be stabilized by applying a thin interface layer between the charge generation layer and the conductive layer. Interface layers that have significantly stabilized the cycling performance of layered electrophotographic imaging members through 30,000 cycles include polyvinyl butyral, polyvinyl pyrrolidone and gamma amino propyl trie thoxysilane.

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XEROX DISCLOSURE JOURNAL

LAYERED ELECTROPHOTO- Proposed Classification GRAPHIC IMAGING MEMBERS US. C1.430/064 EMPLOYING AS2SE3 GENERATOR
C1. Int. LAYERS G03g 15/04 Damodar M. Pai
Leon A. Teuscher

Layered electrophotographic imaging members often comprise a conductive layer, a charge generation layer and a charge transport layer. Examples of such layered electrophotographic imaging members may be found in U. S. Patent 4,265,990. It has been discovered that when the conductive layer comprises vapor deposited aluminum having an aluminum oxide surface, the charge generation layer comprises As2Se3, and the charge transport layer comprises diamine charge transport compounds dispersed in a polycarbonate resin, charge injection and dark decay of the imaging member increases with cycling. This decline in performance may be stabilized by applying a thin interface layer between the charge generation layer and the conductive layer. Interface layers that have significantly stabilized the cycling performance of layered electrophotographic imaging members through 30,000 cycles include polyvinyl butyral, polyvinyl pyrrolidone and gamma amino propyl trie thoxysilane.

XEROX DISCLOSURE JOURNAL - Vol. 17, No. 1 January/February 1992 37

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38 XEROX DISCLOSURE JOURNAL - Vol. 17, No. 1 Januarymebruary 1992

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