Xerox Corporation

John A Bergfjord, Sr

Kathleen M Carmichael

John F Yanus

Anthony M Horgan

Dale S Renfer

Stephan V Drappel

Michael Stephen Roetker

Donald P Sullivan

David J Maty

Colleen A Helbig

Timothy J Fuller

Yuhua Tong

Damodar M Pai

Robert C U Yu

William W Limburg

Markus Rudolf Silvestri

Robert C Yu

Kenny-Tuan Dinh

David M Skinner

Min-Hong Fu

Satish R Parikh

Michael E Zak

Susan M Van Dusen

Jin Wu

Edward F Grabowski

Satchidanand Mishra

Richard L Post

Richard L Schank

Scott J Griffin

Sharon E Normandin

John Joseph Darcy, Iii

Neil S Patterson

Karl V Thomsen

Richard P Millonzi

Steven M Sterling

Joellen Simone

Alfred H Willnow

Edward J Radigan, Jr

Vincent J Cilento

Joseph S Cappiello

Tsu-sen Chow

Richard W Radler, Jr

Miguel A Boscan

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 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.

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

A flexible electrophotographic imaging member comprising a supporting substrate, at least one imaging layer on one side of the supporting substrate, a charge blocking layer, an optional adhesive layer, a charge-generating layer, a charge transporting layer, a seam overcoat layer comprising a coating solution of a co-polyester resin and having a thickness of from about 2 to about 4 micrometers and having a width of from about 2 to about 10 millimeters and wherein said co-polyester resin is present in an amount of from about 2 to about 40 percent by weight based on the total weight of said overcoat layer, and a binder. The imaging member exhibits an excellent life cycle; excellent wear resistance, excellent electrical performance, and outstanding print quality.

Imaging member

An imaging member including at least a support, a charge blocking layer, a charge imaging layer, and an interfacial adhesive layer including at least a copolyester-polycarbonate resin. A process for fabricating the imaging member is also disclosed.

Multilayered imaging member having a copolyester-polycarbonate adhesive layer

A method of treating a flexible multi-layer member exhibiting a glass transition temperature and including a surface layer, the method composed of: moving the member through a member path including: a contact zone defined by contact of the member with an arcuate surface including a curved contact zone region; a pre-contact member path before the contact zone; and a post-contact member path after the contact zone; heating sequentially each portion of the surface layer such that each of the heated surface layer portions has a temperature above the glass transition temperature while in the curved contact zone region; and cooling sequentially each of the heated surface layer portions while in the contact zone such that the temperature of each of the heated surface layer portions falls to below the glass transition temperature prior to each of the heated surface layer portions exiting the curved contact zone region, thereby defining a cooling region, wherein the heating is accomplished in a heating region encompassing any part or all of the contact zone outside the cooling region and a portion of the pre-contact member path adjacent the contact zone.

Stress release method

A charge transport layer for a photoreceptor includes at least a bisphenol A-phthallic acid dichloride ester copolymer polycarbonate binder and at least one charge transport material. The charge transport layer exhibits excellent wear resistance, excellent electrical performance, and delivers superior print quality.

Photoreceptor charge transport layer with a polycarbonate binder

Cross-linked phenoxy anticurl back coating for electrostatographic imaging members

Cross-linked polyamide anticurl back coating for electrostatographic imaging members

A process for recovery of N,N'-bis(alkylphenyl)-[1,1'-biphenyl]-4,4'-diamine from an electrophotographic imaging member, the process including

Process for removal and recovery of an arylamine compound

An electrostatographic imaging member including an anti-curl layer, a supporting substrate having an electrically conductive layer, at least one imaging layer, an optional ground strip layer and an optional overcoating layer, the anti-curl layer including a polycarbonate film forming polymer binder containing 3,3,5-trimethylcyclohexane groups in the polycarbonate moiety.

Imaging member with improved anti-curl backing layer

A method to remove during fabrication of a flexible electrostatographic imaging member, the curl from a curled layered member having a top surface and a bottom surface and comprised of a substrate and a thickest coated layer including: (a) heating a section of the curled layered member to at least the glass transition temperature of the thickest coated layer, thereby defining a heated layered member section containing a thickest coated layer section and a substrate section; (b) compressing the top surface and the bottom surface of the heated layered member section to expand the thickest coated layer section beyond the dimensions of the substrate section; and (c) cooling the heated layered member section such that the expanded thickest coated layer section shrinks to about the dimensions of the substrate section.

Photoreceptor calendering method

An electrophotographic imaging member including an electrophotographic imaging member having an imaging surface adapted to accept a negative electrical charge, the electrophotographic imaging member including a substrate, a siloxane hole blocking layer, an adhesive layer including a uniform blend of polyarylate film forming resin and a polyester film forming resin, a charge generation layer including hydroxygallium phthalocyanine particles dispersed in a film forming resin, and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.

Multilayered electrophotographic imaging member

An electrophotographic imaging member is disclosed having an imaging surface adapted to accept a negative electrical charge, the electrophotographic imaging member comprising a metal ground plane layer comprising at least 50 percent by weight zirconium, a siloxane hole blocking layer, an adhesive layer comprising a polyacrylate film forming resin, a charge generation layer comprising benzimidazole perylene particles dispersed in a film forming resin binder of poly(4,4'-diphenyl-1,1'-cyclohexane carbonate), and a hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the charge transport layer.

Multilayered photoreceptor

An improved organic photoreceptor is disclosed which is coated with a clear polymer film to prevent aromatic amine transport molecule leakage and binder cracking when exposed to liquid toner developers. The polymer film may also be overcoated with a polysiloxane layer to provide additional abrasion resistance.

Polymeric systems for overcoating organic photoreceptors used in liquid

Growing community of inventors

Macedon, NY, United States of America

John A Bergfjord, Sr