Xerox Corporation

Other

Thomas W. Smith

William W. Limburg

David J. Luca

Kathleen M. Mcgrane

William W Limburg

John F Yanus

Dale S Renfer

Damodar M Pai

Timothy J Fuller

Paul J DeFeo

Robert C Yu

Richard L Post

Satchidanand Mishra

Markus Rudolf Silvestri

Richard L Schank

Donald C VonHoene

Geoffrey M Foley

William G Herbert

John W Spiewak

Merlin E Scharfe

Anthony T Ward

Robert W Nolley

Kathleen M Carmichael

Edward F Grabowski

Anthony M Horgan

Ram S Narang

Donald P Sullivan

Harold F Hammond

James M Pearson

Joseph C Mammino

Huoy-Jen Yuh

Dasarao K Murti

David J Williams

Sharon E Normandin

Donald C Von Hoene

Thomas W Smith

Jean M Frechet

Rafik O Loutfy

David J Luca

Kathleen M McGrane

Leon A Teuscher

Sylvie Gauthier

Beng S Ong

David H Pan

Zoran D Popovic

George Liebermann

Giuseppa Baranyi

Constance J Thornton

Abraham Cherian

John A Bergfjord, Sr

Neil S Patterson

Santokh Singh Badesha

Edward Graham Zwartz

Shadi L Malhotra

Yuhua Tong

Ah-Mee Hor

Robert C U Yu

Edward L Schlueter, Jr

John Stephen Facci

Youti Kuo

Walter Mychajlowskij

Donald S Sypula

Milan Stolka

Cindy C Chen

Dennis A Abramsohn

Franklin D Saeva

Martin A Abkowitz

Mark C Petropoulos

Yonn K Rasmussen

John Wei-Ping Lin

Man C Tam

Steven J Grammatica

Ralph A Mosher

Carol A Jennings

Mark S Thomas

Donald A Seanor

Lesley P Dudek

Dana G Marsh

Arthur Y Jones

Charles L Beatty

Brian E Springett

Arnold L Pundsack

John M Pochan

Rachael A Forgit

Clifford H Griffiths

George R Olin

Marie-Eve Perron

Michael M Shahin

Surendar Jeyadev

Brendan W Kunzmann

Kenny-tuan T Dinh

Roger T Janezic

Eric J Schneider

Philip H Soden

Liqin Chen

Charles C Robinson

Louis A Pilato

Paul J Cressman

Enrique Levy

Vincent E Hamilton

J Michael Ishler

Chei-Jen Chen

Satchidanand Mishia

Russell N Gillmeister

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

A process comprising incorporating into an ink jet printing apparatus a developing composition; an oxidizing composition a coloring composition; and a fixing composition; ejecting droplets of the developing composition onto the substrate; ejecting droplets of the oxidizing composition onto the substrate; ejecting droplets of the coloring composition onto the substrate; and ejecting droplets of the fixing composition onto the substrate; wherein the process results in at least some portions of the substrate bearing images comprising all four compositions, the portions forming a printed image. Specific embodiments are directed to the realization of continuous tone and gray scale in image by control of the time at which color forming reactions are quenched by controlling the lime period between deposition of the color forming liquids and deposition of the fixing liquid; or control of the extent of color forming reactions by limitation of the quantity of one of the color forming liquids.

Ink jet printing process

A composition is provided for coating a photoreceptor having a charge generating layer and a charge transport layer. The composition includes a hole transport material, a cross-linkable film forming binder having at least one functional group that is reactive with isocyanate, a blocked isocyanate cross-linking agent and a solvent having a boiling point equal to or below the deblocking temperature. The blocked isocyanate cross-linking agent is the reaction product of an isocyanate and a blocking agent, wherein the blocking agent has a boiling point temperature equal to or below a selected deblocking temperature to allow the isocyanate to form cross-links. The invention also provides an electrophotographic imaging member with an overcoat layer comprising a cross-linked film forming binder, an isocyanate compound, a hole transport material, and optionally a surface energy reducing agent. Processes for making the imaging members are also provided.

Long potlife, low temperature cure overcoat for low surface energy photoreceptors

A process comprising (a) incorporating into an ink jet printing apparatus (1) a developing composition comprising a liquid vehicle and a color developer; (2) an oxidizing composition comprising a liquid vehicle and an oxidizing agent; (3) a coloring composition comprising a liquid vehicle and a dye coupler; and (4) a fixing composition comprising a liquid vehicle and a fixative; (b) causing droplets of the developing composition to be ejected in an imagewise pattern onto the substrate; (c) causing droplets of the oxidizing composition to be ejected in an imagewise pattern onto the substrate; (d) causing droplets of the coloring composition to be ejected in an imagewise pattern onto the substrate; and (e) causing droplets of the fixing composition to be ejected in an imagewise pattern onto the substrate; wherein the process results in at least some portions of the substrate bearing images comprising all four of the developing composition, the oxidizing composition, the coloring composition, and the fixing composition, said portions forming a printed image. Specific embodiments of the present invention are directed to the realization of continuous tone and gray scale in images by (1) control of the time at which color forming reactions are quenched by controlling the time period between deposition of the color forming liquids and deposition of the fixing liquid; (2) control of the extent of color forming reactions by limitation of the quantity of one of the color forming liquids; or (3) control of pixel size by drop placement control over the overlap areas of drops of color forming liquids.

This invention pertains to an electrographic photosensitive material comprising a blocking layer, an electroconductive substrate layer and a charge generation layer, where the blocking layer comprises TiO with an average particle size less than about 50 nm and a quaternary ammonium salt, and where the quaternary ammonium salt is uniformly distributed in the blocking layer and is less than about 5 wt % of the blocking layer. In another aspect, this invention pertains to an image forming apparatus for forming images on a recording medium comprising an imaging light having a wavelength and an organic photoreceptor having a blocking layer, an electroconductive substrate layer, and a charge generation layer, where the blocking layer comprises TiO particles and a quaternary ammonium salt, and where the quaternary ammonium salt is uniformly distributed in the blocking layer and is less than about 5 wt % of the blocking layer.

Photoreceptor with charge blocking layer containing quaternary ammonium salts

An imaging member includes a charge generation layer and a contiguous charge transport layer containing a diamine and a compound within the scope of formula (II):

Squeak and deletion resistant imaging member and system

Terpolymer imaging member and imaging process

Cross-linked phenoxy anticurl back coating for electrostatographic imaging members

An electrophotographic imaging member including a support member, a charge generating layer and a charge transport layer, the charge transport layer including a cross linked matrix derived from a cross linkable aromatic polymer with substituent groups containing unsaturated carbon to carbon double bond, the substituent groups being free of any urethane linkage and attached to phenylene.

Imaging members containing arylene ether alcohol polymers

Cross-linked polyamide anticurl back coating for electrostatographic imaging members

Photoreceptor with improved overcoat layer

A crosslinkable charge transport layer material for a photoconductor includes at least one poly(arylene ether alcohol), at least one polyisocyanate crosslinking agent and at least one charge transport material dispersed in a solvent. The crosslinkable charge transport layer material is crosslinked following application of the coating solution to the photoconductor. The photoconductor including such crosslinked charge transport layer exhibits excellent wear resistance so as to have long life, thereby reducing the cost of electrophotographic printing machines employing such photoconductors therein.

Crosslinkable binder for charge transport layer of a photoconductor

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

Disclosed is an ink jet printhead containing a polymer of the formula

Ink jet printheads containing arylene ether alcohol polymers and processes for their formation

Growing community of inventors

Penfield, NY, United States of America

William W Limburg