Xerox Corporation

Other

Merlin E Scharfe

Damodar M Pai

John F Yanus

Dale S Renfer

Richard L Schank

William W Limburg

Paul J DeFeo

Timothy J Fuller

Joseph C Mammino

Markus Rudolf Silvestri

Donald S Sypula

George A Brown

Lloyd A Relyea

Heinz W Pinsler

Santokh Singh Badesha

Arnold W Henry

George J Heeks

Dennis A Abramsohn

J Stephen Kittelberger

Mark James Hirsch

John G VanDusen

Suresh K Ahuja

Yuhua Tong

Satchidanand Mishra

Robert C U Yu

Kenny-Tuan Dinh

John W Spiewak

Edward J Gutman

Helen R Cherniack

Harold F Hammond

Andrew R Melnyk

Anthony T Ward

John R Laing

Robert F Dunham

Steven M Sterling

Surendar Jeyadev

Jian Cai

James H Neyhart

David H Pan

Edward L Schlueter, Jr

Zoran D Popovic

Huoy-Jen Yuh

Nero R Lindblad

Ronald F Ziolo

John M Hammond

Martin A Abkowitz

Werner E Haas

James M Markovics

Steven J Grammatica

Philip G Perry

Edward A Domm

Christine J Tarnawskyj

Robert W Nolley

Gene W O'Dell

Clifford H Griffiths

Lieng-Huang Lee

Deborah J Nichol-Landry

Edward C Williams

Richard W Bigelow

Paul J Brach

Herbert C Relyea

Roger T Janezic

Walter F Leising

Robert E Trott

John M Magde, Jr

Kenny Tuan Dinh

Chei-Jen Chen

J Michael Ishler

A photoconductive imaging member comprised of an optional supporting substrate, a hole blocking layer thereover, a photogenerating layer, and a charge transport layer, and wherein the hole blocking layer is comprised of a pyrolyzed polyacrylonitrile.

Photoconductive imaging members having pyrolyzed polyacrylonitrile hole blocking layer

An imaging method utilizing an imaging member containing a supporting substrate, a layer of a charge carrier injecting surface, a hole blocking layer, an optional adhesive layer, a layer of a charge carrier transport material, a layer of an charge carrier generating material, an optional charge trapping layer, a crossed linked silicone rubber, and an electrically insulating overcoating layer. The member is first charged with electrostatic charges of a first polarity, charged a second time with electrostatic charges of a polarity opposite to said first polarity in order to substantially neutralize the charges residing on the electrically insulating surface of the member and exposed to an imagewise pattern of activating electromagnetic radiation whereby an electrostatic latent image is formed. The electrostatic latent image may be developed to form a visible image which may be transferred to a receiver member. The imaging member may be reused after erasure and cleaning.

Imaging member

Photoconductive imaging members having pyrolized polyacrylonitrile hole blocking layer

A process for preparing an imaging member includes applying an organic layer to an imaging member substrate, treating the organic layer and/or a backside of the substrate with a corona discharge effluent, and applying an overcoating layer to the organic layer and/or an anticurl backing layer to the backside of the substrate.

Enhancing adhesion of organic electrostatographic imaging member overcoat and anticurl backing layers

A method for improving the quality of a dip coated layer that is deposited by flowing a solution along a substrate in a gap between the substrate and a wall, including: (a) determining a yield stress, a viscosity, a density, and a surface tension of the solution, and selecting a wet thickness of the coated layer; (b) determining a coating speed based on the determined viscosity, the determined density, the determined surface tension of the solution, and the selected wet layer thickness; and (c) selecting a distance for the gap and calculating the shear stress of the solution in the gap based on the gap distance, wherein the shear stress is greater than the yield stress.

Method to improve dip coating

A method of forming one or more polymer containing layers on a substrate using ink jet nozzles. The method is particularly suited to forming one or more polymer containing layers of a photoreceptor. The polymer containing layers may be formed by moving a substrate, in particular a cylindrical substrate, past the ink jet nozzles, by moving the ink jet nozzles over the substrate, or both. The ink jet nozzles are capable of being independently controlled in order to permit precise location of the coating on the substrate.

Process of spray forming photoreceptors with ink nozzles

A crack resistant, curl-free electrophotographic imaging member includes a charge transport layer comprising an active charge transporting polymeric tetraaryl-substituted biphenyidiamine and a plasticizer.

Crack-resistant and curl free multilayer electrophotographic imaging member

An electrophotographic imaging member including

Imaging member with partially conductive overcoating

A process for fabricating an electrophotographic imaging member including forming a charge generating layer, forming an undried charge transport layer coating by applying to the charge generating layer a solution selected from either or both the group consisting of

Electrophotographic imaging member overcoat fabrication process

An electrophotographic printing machine has a photoreceptive member. The photoreceptive member is charged and then exposed with a light image representation to form a latent image. An electric field, less than that required to re-charge the photoreceptive member, is applied to the latent image to increase the rate of discharge of the exposed portions of the latent image. The latent image is then developed.

Discharge of photoreceptors

A flexible electrophotographic imaging member including a supporting substrate coated with at least one imaging layer comprising charge transport material free of long chain alkyl carboxylate groups and a small amount of a different second hole transporting material containing at least two long chain alkyl carboxylate groups dissolved or molecularly dispersed in a film forming binder and coated from a mixture of solvents containing low boiling component and a small concentration of high boiling solvent. Preferably, the flexible electrophotographic imaging member is free of an anticurl backing layer, the imaging member comprising a supporting substrate uncoated on one side and coated on the opposite side with at least a charge generating layer and a charge transport layer containing comprising a first charge transport material and a small amount of a different second hole transporting material containing at least two long chain alkyl carboxylate groups dissolved or molecularly dispersed in a film forming binder and coated from a mixture of solvents containing low boiling component and a small concentration of high boiling solvent.

Electrophotographic imaging member

An endless flexible seamed belt with a mechanically and electrically invisible seam, substantially equivalent in performance to a seamless belt, is formed by joining two ends of substrate material, each end of which has a plurality of mutually mating elements in a puzle cut pattern which are in interlocking relationship. After the two ends are joined, an bonding is applied to the seam of the belt. When the belt is to be an electrostatographic imaging member, the electrostatics of the belt become very important. The two ends of a flexible substrate with a conductive coating applied thereto are interlocked and a conductive bonding is applied to the gap between the interlocking surfaces. The undercoating layer can then be applied to the adhered seam in order to smooth the seamed surface for application of the charge generating layer and the charge transfer layer. The undercoating layer may be relatively thicker than current undercoating layers to insure that the seam surface is smooth.

Invisible seam electrostatographic belt

An apparatus and process for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing apparatus by providing an inorganic coating on at least a portion of the electrode member.

Inorganic coated development electrodes and methods thereof

An apparatus and process for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing apparatus by providing an organic coating on at least a portion of the electrode member.

Organic coated development electrodes and methods thereof

An apparatus for reducing accumulation of toner from the surface of an electrode member in a development unit of an electrostatographic printing apparatus which includes providing a low surface energy coating on at least a portion of the electrode member.

Coated development electrodes and methods thereof

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Penfield, NY, United States of America

Merlin E Scharfe