Xerox Corporation

Richard L Post

Satchidanand Mishra

Anthony M Horgan

Edward F Grabowski

Robert C Yu

Donald C VonHoene

Kathleen M Carmichael

Bing R Hsieh

William W Limburg

Robert C U Yu

Geoffrey M Foley

William G Herbert

Yuhua Tong

Markus Rudolf Silvestri

Satish R Parikh

Donald C Von Hoene

John F Yanus

Donald P Sullivan

Edward A Domm

Yonn K Rasmussen

Sharon E Normandin

Donald J Goodman

Damodar M Pai

Michael Stephen Roetker

Kenny-Tuan Dinh

Dennis J Prosser

Neil S Patterson

John R Lambie

Dale S Renfer

Huoy-Jen Yuh

Scott J Griffin

Min-Hong Fu

David M Skinner

Abraham Cherian

Timothy J Fuller

David H Pan

Kent J Evans

John S Chambers

Youti Kuo

Richard L Schank

George Liebermann

Johann Junginger

Stephen T Avery

Ralph A Shoemaker

Susan M VanDusen

John J Darcy

John A Bergfjord, Sr

Michael E Zak

John Joseph Darcy, Iii

Brian E Springett

Karl V Thomsen

Robert Allen Koontz

Barbara D Ceglinski

Tsu-sen Chow

Charles C Robinson

Houy Jen Yuh

Kenny-tuar Dinh

Geoffrey Mt Foley

Miguel A Boscan

Leonard F Quinn

Satchidanand Mishia

The presently disclosed embodiments are directed to overcoat layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved overcoat layer including a polymeric binder that lowers the surface energy involved and reduces friction.

Imaging member

An imaging member includes a charge generating layer and a charge transport layer. The charge transport layer includes a first surface in contact with the charge generating layer and a second surface. The charge transport layer includes a film forming polymer binder and a charge transport component dispersed therein. The concentration of the charge transport component in the charge transport layer is at a peak in a region of the charge transport intermediate the first and second surfaces of the charge transport layer.

An electrostatographic imaging member formulated with a liquid carbonate is provided. The imaging electrostatographic member exhibits improved service life.

An imaging member has a crosslinked overcoat layer which holds fluorinated nanoparticles. The overcoat layer is formed from an overcoat solution comprising a polymer binder; a hole transport molecule; fluorinated nanoparticles; a fluorinated surfactant; a crosslinking agent; and a free radical initiator. The overcoat layer provides excellent wear resistance at a low cost.

An imaging member is disclosed which includes a charge generating layer and a charge transport layer. The charge transport layer includes a first charge transport layer adjacent the charge generating layer and at least a second charge transport layer adjacent the first charge transport layer. Each charge transport layer includes a film forming polymer binder and a charge transport material dispersed therein. The first charge transport material has a composition which is the same or different than the second charge transport material and of a lower concentration. It may be selected from an aryl amine, aryl diamine, or combinations thereof. The combination has the effect of reducing charge deficient spots.

The presently disclosed embodiments are directed to charge transport layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved charge transport layer including a polymeric binder that lowers the surface energy involved and reduces friction.

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.

An imaging member includes a conductive substrate, a charge generating layer, a charge transport layer, and an intermediate layer between the charge generating layer and the charge transport layer, the intermediate layer including a hole transport material, such as three different hole transfer materials, dispersed in a film forming binder, such as two different binder materials.

Photoreceptor with three-layer photoconductive layer

The presently disclosed embodiments are directed to anticurl backing layers useful in electrostatography. More particularly, the embodiments pertain to an electrostatographic imaging member with an improved anticurl backing layer including a low surface energy polymeric material to prevent curling and reduce friction, and a process for making and using the member.

Anticurl backing layer for electrostatographic imaging members

An imaging member having a charge transport layer is provided. The charge transport layer includes a plurality of charge transport layers coated from solutions of similar or different compositions or concentrations, wherein the upper or additional transport layer(s) comprise a lower concentration of charge transport compound than the first (bottom) charge transport layer. The charge transport compound included in the first (bottom) charge transport layer may either be the same or different from that included in the additional charge transport layers. The charge transport compound in one or more of the layers is dissolved or molecularly dispersed in an electrically inactive polymer material to form a solid solution. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improves wear resistance, provides excellent imaging member electrical performance, and delivers improved print quality.

Imaging members

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

Multilayered web stock is directed toward a curved surface and at least one layer of the web stock is heated to a temperature above a glass transition temperature of the at least one layer of the web stock. The heating can occur just before or upon engaging the curved surface. The temperature of the at least one layer remains above the glass transition temperature while engaging the curved surface, allowing reshaping and/or realignment of the at least one layer relative to other layers of the web stock according to conformance to the curved surface. The web stock is cooled before it disengages from the curved surface. The heating can be done with a high power infrared lamp focused into a line across the web stock, and the cooling can be done with a cooled fluid jet. Additionally, a preheater can be employed, and a supplemental cooler can be used.

Endless belt member stress relief

An electrostatographic imaging member having a charge-retentive surface and a substrate, an imaging layer to receive an electrostatic latent image thereon, wherein the imaging layer is positioned on one side of the substrate, and an anti-curl backing layer positioned on the substrate on a side opposite to that of the imaging layer, wherein the anti-curl backing layer has a polymer binder and lignin sulfonic acid doped polyaniline, and an image forming apparatus having the above imaging member or photoreceptor to receive an electrostatic latent image on a charge-retentive surface of the photoreceptor or imaging member; a development component to apply toner to the charge-retentive surface to develop the electrostatic latent image to form a developed image on the charge-retentive surface; a transfer member to transfer the developed image from the charge-retentive surface to a copy substrate; and a fixing component to fuse the developed image to the copy substrate.

Photosensitive member having anti-curl backing layer with lignin sulfonic acid doped polyaniline

An electrostatographic imaging member having a flexible supporting substrate, an imaging layer capable of retaining an electrostatic latent image, and an electrically conductive ground strip layer comprising a film forming binder and a lignin sulfonic acid doped polyaniline dispersion, and an image forming apparatus with the above imaging member to receive an electrostatic latent image on a charge-retentive surface of the imaging member; a development component to apply toner to the charge-retentive surface to develop the electrostatic latent image to form a developed toner image on the charge-retentive surface; a transfer component to transfer the developed toner image from the charge-retentive surface to a receiving copy substrate; and a fixing component to fuse the developed image to the receiving copy substrate.

Photosensitive member having ground strip with lignin sulfonic acid doped polyaniline

Apparatus comprising a support member having a flat surface adapted to receive and support a seam region of a flexible belt comprising thermoplastic polymer material having a predetermined glass transition temperature, a heatable member having a smooth heatable flat surface for compressing at least a portion of the seam region of a flexible belt placed on the smooth flat surface of the support member to heat the portion to at least the glass transition temperature of the thermoplastic polymer material, the smooth surface of the heatable member having a profile which is parallel to the smooth flat surface of the support member, and wherein the heatable flat surface comprises a low surface energy or abhesive material.

Flexible imaging member belt seam smoothing method

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Penfield, NY, United States of America

Richard L Post