Xerox Corporation

Min-Hong Fu

Yuhua Tong

Kathleen M Carmichael

Susan M VanDusen

John F Yanus

Chieh-Min Cheng

Jin Wu

Kent J Evans

Garland J Nichols

Timothy J Fuller

Edward F Grabowski

David M Skinner

Dennis J Prosser

Robert C U Yu

Kenny-Tuan Dinh

Anthony M Horgan

Markus Rudolf Silvestri

Terry L Bluhm

Terry L Street

Colleen A Helbig

Guerino G Sacripante

Satchidanand Mishra

Dale S Renfer

Lanhui Zhang

Richard L Post

Cindy C Chen

Alexander N Klymachyov

John A Bergfjord, Sr

Michael E Zak

Sean X Pan

June E Schneider

Daniel G Marsh

Susan M Van Dusen

David Allen Mantell

Bing R Hsieh

Francisco Eduardo Torres

Lin Ma

Ian D Morrison

Linda L Ferrarese

Kurt B Gundlach

William M Schwarz

Stephen T Avery

Dale R Ims

Joseph J Wysocki

Mark S Thomas

Robert W Hedrick

Edward A Domm

Jimmy E Kelly

Gary R Fague

Michael P O'Horo

Steven M Sterling

Marc John Livecchi

Alfred H Willnow

James P Bareman

Elizabeth A Kneisel

A photoconductor that includes, for example, a supporting substrate, an optional ground plane layer, an optional hole blocking layer, an optional adhesive layer, a photogenerating layer, and a charge transport layer, and where the charge transport layer contains a mixture of a charge transport component and a polycarbonate AP.

Polycarbonate containing photoconductors

The presently disclosed embodiments are directed to layer(s) that are useful in imaging apparatus members and components, for use in electrophotography, including digital, apparatuses. More particularly, the present embodiments provide the negatively charged electrophotographic imaging members with a novel cross-linked charge blocking undercoat layer, which is created to comprise of a binary composition of melamine and formaldehyde or a triple composition consisting of a hydroxyl functional acrylic polyol binder and a methylolation of melamine-formaldehyde, and methods for making the same. The charge blocking layer provides stabilized cyclic photo-electrical properties, enhanced mechanical adhesion bonding, and improved copy print out quality for service life extension.

Imaging members having an enhanced charge blocking layer

A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, a charge transport layer, and an overcoat layer that contains a titanocene.

Overcoat containing titanocene photoconductors

A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the charge transport layer contains a carbazole.

Carbazole containing charge transport layer photoconductors

A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component, and wherein the charge transport layer contains a pyrazine.

Pyrazine containing charge transport layer photoconductors

A photoconductor that includes, for example, a supporting substrate, a photogenerating layer, and at least one charge transport layer containing at least one charge transport component, and wherein the charge transport layer also contains a thiadiazole.

Thiadiazole containing charge transport layer photoconductors

A photoreceptor comprising a charge transport layer doped with a polyarylate polymer is provided. A charge transport layer is doped with about 0.1 to about 10.0% by weight, solids basis, of a polyarylate polymer, such as for example Ardel. Charge transport layers doped with a polyarylate polymer exhibit improved electrical performance in terms of lower Vand Vvalues.

Photoconductive imaging member

An imaging member comprising a barrier or under-layer intermediate a photogenerating layer and charge transport layer to reduce charge deficiency spots. The barrier under-layer comprises a film forming polymer binder selected from a conductive polymer binder, a non-conductive polymer binder, or mixtures thereof. Optionally, the barrier layer can include a small amount of a charge transport material.

Imaging member

An imaging member having a substrate, a charge transport layer having a polymer and a first charge transport material dispersed therein, and wherein the charge transport layer has a glass transition temperature of from about 10 to about 45&#xb0; C.; and an overcoat layer on the charge transport layer, wherein the overcoat layer includes a second polymer and a second charge transport material dispersed therein.

Photosensitive member having an elastomeric transport layer with a protective overcoat layer

A charge transport layer composition for a photoreceptor includes at least a binder, at least one arylamine charge transport material, e.g., N,N'-diphenyl-N,N&#x2032;-bis(3-methylphenyl)-(1,1&#x2032;-biphenyl)-4,4&#x2032;-diamine, and at least one polymer containing carboxylic acid groups or groups capable of forming carboxylic acid groups. The charge transport layer forms a layer of photoreceptor, which also includes an optional anti-curl layer, a substrate, an optional hole blocking layer, an optional adhesive layer, a charge generating layer, and optionally one or more overcoat or protective layers.

Photoreceptor charge transport layer composition

A charge transport layer for an imaging member comprising a charge transport material with a nitrogen molecular defense system not exhibiting early onset of charge transport layer fatigue cracking. The nitrogen molecular defense system includes attaching bulky organic groups to charge transport materials. The bulky groups aid in preventing recrystallization of the charge transport molecule and shield the nitrogen from molecular attack, such as by oxidation. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and outstanding print quality.

A charge transport layer composition for a photoreceptor includes at least a binder and a charge transport material of about 100% to about 40% by weight of a total of the charge transport layer N,N-dimethylphenyl)-4-biphenylamine and about 0% to about 60% N,N'-dephenyl-N,N&#x2032;-bis(3-methylphenyl)-(1,1&#x2032;-biphenyl)-4,4&#x2032;-diamine, and wherein the total charge transport material in the composition is 48% or less of the total solids of the composition. The charge transport layer forms a layer of a photoreceptor, which also includes an optional anti-curl layer, a substrate, an optional hole blocking layer, an optional adhesive layer, a charge generating layer, and optionally one or more overcoat or protective layers.

A photoconductive imaging member comprised of a photogenerating layer, and a charge transport layer containing a binder and a fluoropolymer generated by the free radical polymerization of a fluoroalkyl(methyl)acrylate and an alkyl(methyl)acrylate.

Fluoropolymer containing photoconductive member

A member including for example, a substrate, a charge generating layer, a charge transport layer comprising a poly(phenylsilsesquioxane), molecule, and a film forming binder.

Imaging members

A process for the preparation of an ink which comprises mixing an ink vehicle, a colorant and a polyurethane resin emulsion.

Ink compositions

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Webster, NY, United States of America

Min-Hong Fu