Xerox Corporation

Ann M Kazakos

Michelle L Schlafer

Michael J Duggan

Heiko Rommelmann

William H Wayman

Bing R Hsieh

Alan Richard Kuntz

Joy L Longhenry

Yuan Yu

Donald S Stanton

Allen J Thompson

Daniel R Gilmore, Iii

Steven C Hart

Timothy R Jaskowiak

Frederick B White

Timothy J Fuller

John F Yanus

Damodar M Pai

Scott M Silence

Kevin H Taft

Jay Lee Schneider

Thomas L DiGravio

Grethel K Mulroy

Michael J DeLuzio

Alicia G Hughes

Leonard J Brillson

Julie A Perez

Tim R Jaskowiak

Mark Gelin

A detoning blade including a steel member of stainless steel or carbon steel having a length, a width, and a thickness and a coating including titanium nitride or tungsten carbide having a thickness ranging from 0.1 microns to 4 microns or a coating of diamond embedded chromium having a thickness ranging from 2.5 microns to 7.5 microns.

Detoning blade

A bias transfer member or bias charging member for a xerographic device includes a support substrate, and a multi-layer conductive surface coating over the support substrate. The multi-layer coating includes a base layer of metal-containing particles in a polymer binder, an intermediate layer of conductive particles in a polymer binder, and a top layer of conductive particles in a polymer binder, wherein the amount of the conductive particles in the top layer is greater than the amount of the conductive particles in the intermediate layer. The multi-layer coating exhibits ideal electrical and abrasion resistance performance for use in bias charging or transfer members.

Electrical charge relaxable wear resistant coating for bias charging or transfer member

Rolls include a core and a stabilized zirconia-containing outer coating on the core. The outer coating can also include titania. The outer coatings have smooth finishes and controlled electrical properties. The outer coatings of the rolls can be finished to a highly smooth finish in reduced cycle times. The rolls can be used in electrostatographic imaging apparatus as charge donor rolls.

Roll having zirconia coating

A donor member, useful in ionographic or electrophotographic apparatuses and preferably useful in hybrid scavengeless development units, has a substrate and an oxidized transport coating thereover. The oxidized transport coating includes a polymer binder, charge transporting molecules and one or more oxidizing agents. The polymer binder of the donor roll coating preferably includes one of (1) a crosslinked polymer with charge transporting molecules dispersed therein, or (2) a crosslinked polyamide binder with hydroxy charge transport molecules dispersed therein. The donor roll is preferably included in a printing machine that develops latent images formed on a photoconductive member.

Crosslinkable polymer compositions for donor roll coatings

A roller includes a core and a ceramic coating formed over the core. The roller has a composite runout of less than 20 &mgr;m and a total indicator reading runout of less than 7 &mgr;m. The ceramic coating has a smooth finish and has controlled electric properties. This roller can be used as a donor roller for transporting toner to a photoconductive member so as to achieve high-quality image development.

Donor rolls and methods of making donor rolls

A donor member useful in ionographic or electrophotographic apparatuses and preferably useful in hybrid scavengeless development units, having a substrate and an oxidized transport coating including charge transport molecules, polymer binder, and an oxidized oligo arylamine salt comprising a cation of an oligo arylamine molecule and a counter anion.

Oxidized transport donor roll coatings

A thermal ink jet printer including a frame, a printhead mounted to the frame for printing ink images onto a heated and supported substrate, and a wear resistant and efficient substrate heating and supporting assembly mounted to the frame. The wear resistant and efficient substrate heating and supporting assembly includes metallic core having an inner surface and an outer surface, a heating device for heating the inner surface of the metallic core, and a ceramic aluminum nitride or aluminum oxide coating formed over the outer surface of the metallic core for contacting and supporting a substrate, and for durably withstanding scraping contact from a stripper member used for stripping substrates from a surface of said ceramic coating.

Ink jet printer having a wear resistant and efficient substrate heating and supporting assembly

An article including a cylindrical roller core; and a titanium dioxide ceramic layer bonded to the exterior of the cylindrical core.

Charging roller and processes thereof

A detoning roll having a ceramic outer coating for removing residual toner particles from a cleaning reproduction machine. The ceramic outer coating consists essentially of a suitable mixture of alumina and titania by weight giving the detoning roll a desired resistivity within a range of 2.8.times.10.sup.7 -2.10.times.10.sup.9 (Ohm-cm), a discharge time constant of greater than 600 microseconds, and a dielectric constant within a range of 12-24 at 100 KHz.

Composition for a ceramic coated detoning roll for use in an

A method for forming an electroconductive member such as an imaging member, an intermediate belt, and an electroded donor or bias transfer roll for electrostatographic development includes the steps of forming a roll having a layer of an insulating material and altering an electrical property of the insulating material by irradiating the insulating material with a laser beam.

Process for preparing electroconductive members

An electroded donor roll for mounting partially within a mixing chamber of a development unit for forming a development zone with an image bearing member and moving charged toner particles from the mixing chamber to the development zone. The donor roll includes a conductive shaft core and a dielectric material layer that is injection molded over the shaft core. The donor roll also includes axially extending electrodes formed in the surface of the dielectric layer, and robust commutator contact pads that are formed from a conductive commutator washer device which has been overmolded into the dielectric layer. The commutator pads each are in line with, and contact an axially extending electrode.

Electroded donor roll having robust commutator contacts

A donor roll having a ceramic coating for use with an electrode structure in a scavengeless development unit of an electrostatographic printer. The ceramic coating consist essentially of a suitable mixture of alumina and titania by weight giving the donor roll a desired resistivity within a range of 2.0.times.10.sup.7 -4.2.times.10.sup.8 (Ohm-cm), a discharge time constant of about 550 microseconds, and a dielectric constant within a range of 16-24 at 100.KHz.

Ceramic coating composition for a hybrid scavengeless development donor

A method of manufacturing a donor roll having a plurality of electrodes on the surface of the roll is provided. The roll is for use in developing a latent image. The method includes providing a substantially cylindrical member and covering at least a portion of the surface of the member tangentially with a screen. The screen has an aperture therein. The method further includes urging a conductive material through at least a portion of the aperture and onto the surface of the member to form at least one of the electrodes and advancing the screen and the surface of the member synchronously to form subsequent electrodes.

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Webster, NY, United States of America

Ann M Kazakos