Xerox Corporation

Eastman-kodak Company

Bayer Corporation

Sanofi Winthrop Inc.

Sterling Winthrop Inc.

Additive Technologies LLC

Boyer, Inc.

Linn C Hoover

Erwin Ruiz

Douglas K Herrmann

David A VanKouwenberg

Chu-Heng Liu

Seemit Praharaj

Jason Mathew LeFevre

Paul J McConville

Paul Michael Fromm

Michael Jon Levy

Jeffrey John Bradway

Ron Edward Dufort

Robert Alan Clark

Patrick Jun Howe

Andrew Wayne Hays

Ali Rafic Dergham

George Amos Gibson

Peter John Knausdorf

William J Nowak

Derek Albert Bryl

Barry Paul Mandel

Christopher Douglas Atwood

Thomas Jay Wyble

Thomas C Reiter

Rachel Lynn Tanchak

Daniel A Slater

David J Revelle

Luis R Torres

Ruddy Castillo

Ralph E Williams

William Joseph Hannaway

David Allen Mantell

Anthony Salvatore Condello

Steven Robert Moore

Varun Sambhy

Joannes N M deJong

Carlos Manuel Terrero

David Mark Kerxhalli

Henry Thomas Bober

David S Derleth

David Keneth Ahl

John E Derimiggio

Scott H Schwallie

David Alan Vankouwenberg

John Patrick Baker

Kareem N Tawil

Jeffrey J Folkins

Bruce Earl Thayer

Mandakini Kanungo

Lloyd A Williams

Joseph C Sheflin

Frank Berkelys Tamarez Gomez

Paul Ronald Austin

Ming Yang

Jonathan Byron Hunter

Kathleen A Feinberg

Richard Alan Campbell

Thomas C Hollar

Glenn David Batchelor

John Paul Meyers

William A Bergstresser

Jason M LeFEVRE

Ronald R Vacek

Christopher M Mieney

Nan-Xing Hu

Santokh Singh Badesha

Zhigang Fan

Liang-Bih Lin

Stuart Alan Schweid

Kock-Yee Law

Palghat Srinivas Ramesh

Gordon Sisler

Guiqin Song

James Edward Williams

Michael Nicholas Soures

Martin Edward Hoover

Elias Panides

Timothy Patrick Foley

Jack Thomas Lestrange

John J Niedospial, Jr

Brian P Gilmartin

Jess Robert Gentner

Michael J Linder

Daniel James McVeigh

James Lawton Giacobbi

Bruce H Smith

Matthew Dondiego

Jonathan Ross Ireland

Dennis James O'Dea

Martin L Frachioni

Donald E Thresh

Richard A Kalb

Frank Michael Goetz

Gary Allan Batt

John T Newell

Brian M Balthasar

Yuanjia Zhang

Robert Jian Zhang

Charles J Bennett

Eun Suk Suh

A method of operating an inkjet printer operates solvent vapor generators that direct two flows of solvent vapor towards media on each side of each printhead in the process direction. The solvent vapor attenuates the evaporation of ink solvent from ink drops on the nozzle plates or from the ink in the nozzles of the printheads. Thus, the ink on the nozzle plates and in the nozzles does not dry out and the operational status of the inkjets is preserved.

Method for preserving ink viscosity in inkjets in an inkjet printer during printing

A method of inkjet printer operation produces a security pattern in a printed document. In one embodiment, the security feature is printed in the document as a line target with printheads that have been rotated so the rows of inkjets in the printhead are not aligned in the cross-process direction. The line target in the original document has a frequency response to that differs from a copy formed with a device that does not have rotated printheads. In another embodiment, a sneeze pattern is modified by shifting pixels of at least one color separation in the sneeze pattern in a cross-process direction or a process direction. A copy is identified because it does not contain the shifted pixels.

System and method for using printhead rotation to secure inkjet printing

Devices include first and second frame elements having mounting points connectable to opposite ends (e.g., first end, second end) of the touchscreen. First and second rollers are connected, respectively, to the first and second frame elements. A web of transparent material is supported by and between the first and second rollers. Further, an ultraviolet light device is connected to the second frame element and is positioned to expose the web of transparent material to ultraviolet radiation to disinfect the transparent material between users.

Scrolling protective film system for touchscreen

A color changing expiration indicator includes a reactive layer and a first barrier layer that covers at least a portion of the reactive layer. The color changing expiration indicator also includes a transmission layer that covers at least a portion of the first barrier layer, and a second barrier layer that covers at least a portion of the transmission layer. The color changing expiration indicator further includes a reactant layer that covers at least a portion of the second barrier layer. The reactant layer changes color responsive to a reaction that occurs between the reactant layer and the reactive layer.

Color changing expiration indicator

A dross extraction system for a printer is disclosed, which includes an ejector defining an inner cavity associated therewith, the inner cavity retaining a liquid printing material. The dross extraction system also includes a first inlet coupled to the inner cavity of the ejector, a probe external to the ejector, which is selectably positionable to contact the liquid printing material to attract dross thereto, thereby extracting dross from the liquid printing material when the probe is withdrawn from the liquid printing material. A method of extracting dross from a metal jetting printer is also disclosed, which includes pausing an operation of the metal jetting printer, advancing a probe into a melt pool within a nozzle pump reservoir in the metal jetting printer, extracting dross from the metal printing material and onto the probe, retracting the probe from the nozzle pump reservoir, and resuming the operation of the metal jetting printer.

Dross extraction system and methods thereof

A method includes printing, by one or more printer heads of the printing system, a reactive layer onto print media. The method also includes printing, by the one or more printer heads, a determined number of transmission layers and a determined number of barrier layers in alternation with one another. At least a portion of the reactive layer is configured to migrate through the transmission layers. The method further includes printing, by the one or more printer heads, a reactant layer that is configured to change color responsive to a reaction that occurs between the reactant layer and the reactive layer upon migration of the reactive layer through the determined number of transmission layers. The reaction is configured to occur on a received expiration date.

An inkjet printer includes solvent vapor generators that direct two flows of solvent vapor on each side of each printhead in the process direction toward media passing the printheads in the printer. The solvent vapor attenuates the evaporation of ink solvent from ink drops on the nozzle plates or from the ink in the nozzles of the printheads. Thus, the ink on the nozzle plates and in the nozzles does not dry out and the operational status of the inkjets is preserved.

System and method for preserving ink viscosity in inkjets in an inkjet printer during printing

A printing system comprises a print fluid deposition assembly, a media transport device, and an air flow control system. The print fluid deposition assembly comprises a carrier plate and a printhead arranged to eject a print fluid through an opening of the carrier plate to a deposition region. The media transport device comprises a movable support surface to transport a print medium along a process direction through the deposition region, the media transport device holding the print medium against the movable support surface by vacuum suction. The air flow control system is arranged to selectively flow air through the opening of the carrier plate between the carrier plate and the printhead based on a location of a print medium transported by the media transport device relative to the printhead.

Devices, systems, and methods for supplying makeup air through openings in carrier plates of printing system

A method of operating a printer supplies an ink solvent or mixture of ink solvents to porous members positioned adjacent printheads. The ink solvent or solvent mixture evaporates from the porous members to provide a solvent vapor environment in the vicinity of the nozzle plates of the printheads. The solvent vapor environment attenuates the evaporation of ink solvent from ink drops on the nozzle plates or from the ink in the nozzles of the printheads. Thus, the ink on the nozzle plates and in the nozzles does not dry out and the operational status of the inkjets is preserved.

A marker transport system and a method of operating the marker transport system. A group of print bars is located with respect to a marker transport platen and a marker transport belt. A vacuum source and a pneumatic solenoid block are associated with the marker transport platen. The marker transport platen includes airflow sections divided into process-direction slots and cross-section direction slots. The cross-section direction slots are located beneath the print bars and are connected to the vacuum source via the pneumatic solenoid block, which facilitates an individual control of each of the cross-process direction slots. Pneumatic valves are associated with the pneumatic solenoid block, which supplies a flow of vacuum to the cross-process direction vacuum slots. The pneumatic vales can be timed to allow the vacuum to be present when a sheet is present over a corresponding vacuum slot among the process-direction slots and the cross-section direction slots.

Active airflow control device for vacuum paper transport

A printing system comprises a print fluid deposition assembly, a media transport device, and an air flow control system. The print fluid deposition assembly comprises a printhead to eject a print fluid through an opening of a carrier plate to a deposition region. The media transport device holds a print medium against the movable support surface by vacuum suction and transports the print medium through the deposition region. The air flow control system is to flow air through the carrier plate to the movable support surface via a port through the carrier plate on an inboard side the carrier plate and to control a flow rate of the air flowed through the port based on a size of a print medium transported by the media transport device.

Devices, systems, and methods for supplying makeup air through ports in a carrier plate of a printing system

An apparatus includes, among other components, a frame adapted to be connected to the exterior surface of a device that has a touchscreen. A retractable cover is operatively connected to the frame. The size of the retractable cover is equal to at least the size of the touchscreen, and the retractable cover is positioned to extend so as to cover the touchscreen. At least one ultraviolet light is also operatively connected to the frame. The ultraviolet light is positioned to direct ultraviolet lighting toward the touchscreen when the retractable cover extends to cover the touchscreen.

Self-sanitizing touchscreen cover

A universal object holding mechanism for holding three-dimensional objects for printing thereon uses multiple conformable balls mounted within a pattern of holes in a two part back plate. The multiple conformable balls are pressed into an object, which in turn, is pressed against a datum surface that represents desired spacing away from print heads. Vacuum is applied to the multiple conformable balls which grip the object. The multiple conformable balls are filled with particulates that cause the multiple conformable balls to become rigid when the vacuum is applied. This contributes to keeping the object from moving when it is being moved past a print head.

Apparatus for general object holding during printing using multiple conformable gripper balls

An aqueous ink printer is operated to insert media sheets from a first supply tray into a plurality of media sheets from a second tray on which ink images are being formed by the printer to absorb condensed vapors on media guides. The media sheets from the first tray are uncoated media and the media sheets from the second tray are coated media. In some embodiments, the inserted media sheets are printed with an ink image that has areas that contact the media guides with a greater ink density than other areas of the ink image that do not contact the media guides. Additionally or alternatively, the inserted media sheets are printed with an ink image that has areas that contact the media guides with an ink color that is different than an ink color used in other areas of the ink image that do not contact the media guides.

System and method for removing ink solvent and water vapors in aqueous ink printers

A method for determining a temperature of an object includes contacting the object with a first electrical conductor. A difference in electronegativity between the object and the first electrical conductor is greater than a predetermined value. The method also includes contacting the object or a substrate on which the object is positioned with a second electrical conductor. A difference in electronegativity between the object or the substrate and the second electrical conductor is less than the predetermined value. The method also includes connecting the first and second electrical conductors together. The method also includes measuring the temperature of the object using the first and second electrical conductors. The first and second electrical conductors form at least a portion of a thermocouple.

System and method for determining a temperature differential between portions of an object printed by a 3D printer

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Webster, NY, United States of America

Linn C Hoover