Xerox Corporation

Virginia Tech Intellectual Properties, Inc.

Jignesh P Sheth

Paul J McConville

Santokh Singh Badesha

David Joseph Gervasi

James Edward Williams

Trevor James Snyder

Pinyen Lin

David A VanKouwenberg

Barry Daniel Reeves

Brian David Bitz

Garth L Wilkes

David Alan Vankouwenberg

Iskender Yilgor

Mark Steven Taft

David Ruff

Sean W Harris

Katherine D Weston

Emel Yilgor

An improved method of measuring relative positions of adjacent printheads in a printhead array has been developed. A pair of ink dashes is made with different colors of ink from adjacent printheads and an offset distance between the dashes is determined from color density measurements of the two dashes. The offset distance may then be used to adjust the stitch alignment of the two printheads.

System and method for correcting stitch error in a staggered printhead assembly

A process for preparing an imaging surface of an imaging transfer member in a printing machine, the process comprises providing a surface roughness to the imaging surface to produce a plurality of pits having sharp features on the surface, and then exposing the pitted imaging surface to an acid dip for a time period sufficient to substantially reduce the sharp features on the imaging surface. This process may be followed by anodization. The process produces an imaging surface having a pit structure providing reduced oil consumption and wear of components of the printing machine that contact the imaging surface.

Surface finishing process for indirect or offset printing components

Exemplary embodiments provide an aluminum image drum and method of its formation such that the aluminum image drum can have a surface texture to provide desirable surface oil consumption and high print quality for solid ink jet marking systems.

Materials and methods to produce desired image drum surface topography for solid ink jet

Herein includes an offset printing apparatus for transferring and optionally fixing a phase change ink onto a print medium including a) a phase change ink application component for applying a phase change ink in a phase change ink image to an imaging member; b) an imaging member for accepting, transferring and optionally fixing the phase change ink image to the print medium, the imaging member having i) an imaging substrate, and thereover ii) an intermediate layer including a polyurethane, and iii) outer coating including a nitrile butadiene and a conductive filler; and c) a release agent management system for supplying a release agent to the imaging member, wherein an amount of release agent needed for transfer and optionally fixing the phase change ink image is reduced.

Phase change ink imaging component having two-layer configuration

A printing apparatus having a) a printing station including at least one printhead for applying phase-change ink to a print substrate in a phase-change ink image, and b) an ink spreading station including an ink spreading member and a back-up pressure member in pressure contact with the ink spreading member forming a nip between the ink spreading member and pressure member for spreading the phase-change ink image on the print substrate, wherein the print substrate is passed through the nip, and wherein the pressure member includes i) a pressure member substrate, and ii) an outer coating with a urethane and conductive salt.

Electrically conductive pressure roll surfaces for phase-change ink-jet printer for direct on paper printing

A printing apparatus having a) a printing station including at least one printhead for applying phase-change ink to a print substrate in a phase-change ink image, and b) an ink spreading station including an ink spreading member and a back-up pressure member in pressure contact with the ink spreading member forming a nip between the ink spreading member and pressure member for spreading the phase-change ink image on the print substrate, wherein the print substrate is passed through the nip, and wherein the pressure member includes i) a pressure member substrate, and having thereon ii) an intermediate coating comprising a polyurethane material, and having thereon, iii) an outer coating comprising a nitrile butadiene and a conductive filler.

Pressure roller two-layer coating for phase-change ink-jet printer for direct on paper printing

Herein includes an offset printing apparatus for transferring and optionally fixing a phase change ink onto a print medium including a) a phase change ink application component for applying a phase change ink in a phase change ink image to an imaging member; b) an imaging member for accepting, transferring and optionally fixing the phase change ink image to the print medium, the imaging member having i) an imaging substrate, and thereover ii) an outer coating with a urethane and a conductive salt; and c) a release agent management system for supplying a release agent to the imaging member, wherein an amount of release agent needed for transfer and optionally fixing the phase change ink image is reduced.

Phase change ink imaging component having conductive coating

Using novel synthetic techniques, siloxane-urea segmented copolymers are made. The copolymers advantageously contain a polyether interface, with controlled morphologies and properties. High molecular weight, high strength siloxane-urea copolymers with urea hard segment contents ranging from 5 to over 60% by weight may be prepared. Polymer properties that can independently be controlled include modulus (1.0 to 120 MPa), ultimate tensile strength (1.5 to 25 MPa), level of equilibrium water absorption (&#x2dc;0 to 100% by weight) and refractive index (1.43 to 1.46).

Growing community of inventors

Wilsonville, OR, United States of America

Jignesh P Sheth