Xerox Corporation

Palo Alto Research Center Inc.

Joanne L Lee

Paul J McConville

Santokh Singh Badesha

Jason Mathew LeFevre

James Michael Chappell

Rachael L McGrath

Peter Gordon Odell

Naveen Chopra

Jennifer Lynne Belelie

Patrick Yasuo Maeda

Gregory B Anderson

David Kalman Biegelsen

Gabriel Iftime

Jeffrey J Folkins

Stephan V Drappel

Jeffrey H Banning

Sandra J Gardner

Kentaro Morimitsu

Peter John Knausdorf

Jack T LeStrange

Joerg Martini

Jule W Thomas, Jr

Janos Veres

Jack Thomas Lestrange

Paul S Bonino

Corey L Tracy

Srinivasa Rangaraj Deshiikan

Paul J Mcconville

A method and system for enabling a patterned liquid, can involve creating a heat image on an imaging blanket by selectively heating the imaging blanket with a digitally controlled energy source, and subjecting the heat image to a selective deposition of a fountain solution material to enable vapor condensation on unheated areas and vapor rejection from heated areas to generate a fountain material image.

Pre-heat addressed vapor rejection for fountain solution image formation

Additive manufacturing devices and methods for the same are provided. The additive manufacturing device may include a stage configured to support a substrate, a printhead disposed above the stage, and a targeted heating system disposed proximal the printhead. The printhead may be configured to heat a build material to a molten build material and deposit the molten build material on the substrate in the form of droplets to fabricate the article. The targeted heating system may be configured to control a temperature or temperature gradient of the droplets deposited on the substrate, an area proximal the substrate, or combinations thereof.

Additive manufacturing systems and methods for the same

Additive manufacturing devices and methods for the same are provided. The additive manufacturing device may include a stage configured to support a substrate, a printhead disposed above the stage, and a targeted heating system disposed proximal the printhead. The printhead may be configured to heat a build material to a molten build material and deposit the molten build material on the substrate in the form of droplets to fabricate the article. The targeted heating system may be configured to control a temperature or temperature gradient of the droplets in a flight path interposed between the printhead and the substrate.

In a digital inking system having an anilox member that carries a patterned metered layer of ink to a digital imaging member, and a doctor blade that removes excess ink from the surface of the anilox member resulting in the patterned metered layer, an overfill form roller in rolling contact with the anilox member adds an overcoat layer of ink on the patterned metered layer for transfer of both layers of ink to the digital imaging member. The overcoat layer of ink uniformly covers all regions of the anilox member and the mattered metered layer of ink, including lands of the anilox cell walls to make the combined layers of ink pattern-free.

Pattern-free anilox inking system and method

Functional amine release agents displaying improved wetting as compared to standard silicone oils comprise a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl, in which the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g and the release agents have a viscosity of 20 cSt and 10 cSt. In an in-line tandem print system, the 20 cSt release agent is used in the upstream print engine while the 10 cSt release agent is used in the downstream print engine.

Release agent composition for tandem solid inkjet imaging systems having improved wettability

A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, comprises a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl. The concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0001 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.5 or more to the print media, resulting in improved finishing and converting equipment interaction. The release agent may have a viscosity of about 50 cSt.

Release agent composition for improved coefficient of friction

An ink includes a Cto Cfatty acid and a microcrystalline wax, the ink exhibiting greater scratch resistance than a conventional ink as measured by scratch and fold testing.

Scratch resistant inks

A system is disclosed for measuring the crystallization of crystalline-amorphous mixtures. The system includes a sample holder. and a heating apparatus to melt a ink composition and to keep the melted ink composition at a first specified temperature for a first period of time. The system includes a cooling apparatus to receive the melted ink composition, to cool the melted ink composition and to maintain the cooled ink composition at a second specified temperature. The system includes a microscope and a video recording device to capture images of the cooled ink composition for a second period of time A video processing computer includes a memory, a processor and software instructions and the software instructions causes the computer to extract crystallization parameters about the cooled ink composition from the captured images. The crystallization parameters identify fast solidifying crystalline inks that have a short time duration from onset of crystallization until crystallization.

Time resolved optical microscopy ('TROM') process for measuring the rate of crystallization of solid inks

A functional amine release agent displaying improved wetting ability as compared to standard silicone oils comprises a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl; wherein the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g and a viscosity of 20 cSt. The release agent may be particularly useful in a single engine duplex printing system.

Release agent composition for solid inkjet imaging systems for improved wettability

A solid ink composition comprising an amorphous component, a crystalline material, and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates. In embodiments, the solid ink formulation comprises a blend of amorphous and crystalline components which provides a solid ink with excellent rheological properties and robustness when forming images or printing on coated paper substrates.

Solid ink compositions comprising crystalline-amorphous mixtures

A process including disposing at least one phase separation ink in an imagewise fashion onto a final image receiving substrate to form an ink image, wherein disposing is at a first temperature at which the at least one phase separation ink is in a molten, unseparated state; cooling the ink image to a second temperature sufficient to initiate crystallization of at least one component of the at least one phase separation ink, wherein at the second temperature the at least one phase separation ink comprises a crystalline phase and an amorphous phase; wherein the amorphous phase of the at least one phase separation ink substantially penetrates into the final image receiving substrate; and wherein the crystalline phase of the at least one phase separation ink substantially remains on the surface of the final image receiving substrate; applying pressure to the ink image on the final image receiving substrate; and allowing the ink to complete crystallization.

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Rochester, NY, United States of America

Joanne L Lee