Xerox Corporation

Christopher A Wagner

Peter Gordon Odell

Jennifer Lynne Belelie

C Geoffrey Allen

Gabriel Iftime

Marcel Philippe Breton

Peter Michael Kazmaier

Paul Farrell Smith

Michelle Chretien

Naveen Chopra

Stephan V Drappel

Adela Goredema

Barkev Keoshkerian

Daryl Walter Vanbesien

Caroline Melanie Turek

Eniko Toma

Christine E Bedford

Raymond W Wong

Gordon Sisler

Mihaela Maria Birau

Hadi K Mahabadi

Edward Graham Zwartz

Rina Carlini

T Brian McAneney

Biby Esther Abraham

Jordan H Wosnick

Michelle N Chrétien

Tyler B Norsten

Maria Birau

Christine Deborah Anderson

Salma Falah Toosi

Christy E Bedford

Ian R Duffy

Michelle N Chretien

Nan-Xing Hu

Reiner Eschbach

Shen-Ge Wang

Kock-Yee Law

Jeffrey H Banning

Carolyn Patricia Moorlag

Sandra J Gardner

Varun Sambhy

Steven E Ready

Bryan James Roof

Bo Wu

Santiago Faucher

Wolfgang G Wedler

Gregory Joseph Kovacs

Lawrence Floyd, Jr

Sheau V Kao

Allen W Denham

Raymond Wan-Ning Wong

Christine Anderson

Bruce Goodbrand

Maxine E Haberl

James Fallon, Jr

Nadia Edun

Gariel Iftime

T Brian Mcaneney

Maxine Haberl

Ian Duffy

Geoffrey C Allen

Neha Kharbanda

An improved apparatus and method for forming images comprising Braille, raised print, regular print, or a combination is described. The architecture for the printing of Braille dots using marking material such as UV gel ink. The UV gel ink is deposited on a drum that has an array of closely packed raised features like mesas that are cup-shaped. The mesas on drum are filled with the UV gel ink and transferred to paper or another substrate. Partial curing can occur on the drum and the dots can be fully cured after transfer to the substrate. The mesas are shaped so that the dots take on a final shape consistent with usual Braille features.

Architecture for the printing of braille dots using UV gel ink

There is described a surface layer or coating of a fluoropolymer. Dispersed in the fluoropolymer is a compound of the formula: wherein R, R, R, and Reach, independently of the others, are &#x2014;H, alkyl, aryl, arylalkyl, or alkylaryl, R is a group of the formula &#x2014;COOH, &#x2014;COOM, &#x2014;R&#x2014;COOH, &#x2014;R&#x2014;COOM, &#x2014;X&#x2014;R&#x2014;COOH, or &#x2014;X&#x2014;R&#x2014;COOM wherein X and Rare as defined herein, M is a cationic metal, A represents a saccharide monomer repeating unit having one or more R groups, B represents a saccharide monomer repeating unit having no R groups, m is an integer representing the number of repeating A units, and n is an integer representing the number of repeating B units.

Surface layer

A method for fabricating a three-dimensional object including depositing a first amount of an ultraviolet curable phase change ink composition comprising an optional colorant and a phase change ink vehicle comprising a radiation curable monomer or prepolymer; a photoinitiator; a reactive wax; and a gellant upon a print region surface; successively depositing additional amounts of the ultraviolet curable phase change ink composition to create a three-dimensional object; and curing the ultraviolet curable phase change ink composition.

Ultra-violet curable gellant inks for three-dimensional printing and digital fabrication applications

A radiation curable solid ink composition comprising at least one curable wax that is curable by free radical polymerization; at least one monomer, oligomer, or prepolymer; at least one non-curable wax; at least one free-radical photoinitiator or photoinitiating moiety; and a colorant; wherein the components form a curable ink composition that is a solid at a first temperature of from about 20 to about 25&#xb0; C.; and wherein the components form a liquid composition at a second temperature of greater than about 40&#xb0; C.

Curable solid ink compositions

A substantially colorless radiation overcoat composition suitable for overcoating ink-based images and xerographic-based images. The overcoat composition comprises at least one gellant, at least one monomer, at least one substantially non-yellowing photoinitiator, optionally a curable wax, and optionally a surfactant.

Curable overcoat compositions

Positive and negative stamp masters derived from UV curable ink molds comprising ultraviolet (UV) curable inks and methods for digitally preparing those stamp masters. In particular, the digitally prepared molds provide a method of printing micropatterns of fine variable features or images in a more efficient manner than the methods currently available.

Digitally prepared stamp masters and methods of making the same

A phase change ink composition comprising a wax; an optional colorant; and a modified polysaccharide salt.

Phase change ink comprising a modified polysaccharide composition

Disclosed is a phase change ink comprising (a) a carbon black pigment, (b) a bis-urethane, and (c) a phase change ink carrier, said carrier comprising (i) a branched triamide and (ii) a Fischer-Tropsch wax having an average peak molecular weight of from about 300 to about 800 and a polydispersity of from about 1.001 to about 3.

Phase change inks containing Fischer-Tropsch waxes

A nonpolar or solid (or phase change) ink composition that includes a carrier and at least one nanoscale fluorescent pigment particle composition and/or a fluorescent organic nanoparticle composition. The fluorescent organic nanoparticle composition includes a polymeric matrix obtained by modified EA latex process and/or emulsion polymerization and one or more fluorescent dyes and the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer.

Fluorescent solid ink made with fluorescent nanoparticles

An ink comprising an ink vehicle; pigment particles; and a dispersant; wherein the dispersant stabilizes the pigment particles; and wherein the dispersant is a compound of the formula or a mixture thereof, wherein R and R' are independently selected from alkyl, arylalkyl, or alkylaryl with from about 18 to about 60 carbon atoms and wherein m is an integer of from about 1 to about 30.

Pigmented phase change inks containing low molecular weight pigment dispersants

This disclosure is generally directed to curable solid inks, such as radiation-curable solid inks, and their use in forming images, such as through transfuse printing. More specifically, this disclosure is directed to radiation-curable solid inks, such as ultraviolet-light-curable phase-change inks, that comprise curable and non-curable waxes.

Radiation curable solid ink compositions suitable for transfuse printing applications

Release layers, and particularly low surface tension aqueous solutions, such as fountain solutions, which function as release layers. These release layers are integrated into copying and printing machines, such as xerographic machines, multifunctional devices, color systems, and the like, wherein the release layers are specifically incorporated onto a hydrophilic roll material for contact leveling of UV curable gel inks.

Contact leveling using low surface tension aqueous solutions

A phase change composition including at least one crystalline polyester and at least one acrylate monomer. Examples of suitable crystalline polyesters include aliphatic crystalline polyesters and polylactones. A method of making the phase change composition, and a method for applying the phase change composition to a substrate.

Phase change composition for printing

A curable solid ink composition including a curable component, a non-curable component including an ethoxylated octylphenol derivative, a photoinitiator, and a colorant. The curable solid ink composition has a viscosity in the range of less than 10 cPs at 90&#xb0; C., a shrinkage value of less than 3%, and a superior curing rate compared to existing curable solid ink compositions. The ethoxylated octylphenol derivatives may be prepared by reacting an ethoxylated octylphenol, a linear alcohol, and diisocyanates or polyisocyanates.

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Toronto, Canada

Christopher A Wagner