Patents Assigned to Xerox
  • Publication number: 20220363840
    Abstract: A nonlimiting example method of forming highly spherical carbon nanomaterial-graft-polyamide (CNM-g-polyamide) polymer particles may comprising: mixing a mixture comprising: (a) carbon nanomaterial-graft-polyamide (CNM-g-polyamide), wherein the CNM-g-polyamide particles comprises: a polyamide grafted to a carbon nanomaterial, (b) a carrier fluid that is immiscible with the polyamide of the CNM-g-polyamide, optionally (c) a thermoplastic polymer not grafted to a CNM, and optionally (d) an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the polyamide of the CNM-g-polyamide and the thermoplastic polymer, when included, and at a shear rate sufficiently high to disperse the CNM-g-polyamide in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form CNM-g-polyamide particles; and separating the CNM-g-polyamide particles from the carrier fluid.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 17, 2022
    Applicant: Xerox Corporation
    Inventors: Valerie M. Farrugia, Shivanthi Easwari Sriskandha
  • Publication number: 20220363799
    Abstract: A nonlimiting example method of forming highly spherical carbon nanomaterial-graft-polyolefin (CNM-g-polyolefin) particles may comprising: mixing a mixture comprising: (a) a CNM-g-polyolefin comprising a polyolefin grafted to a carbon nanomaterial, (b) a carrier fluid that is immiscible with the polyolefin of the CNM-g-polyolefin, optionally (c) a thermoplastic polymer not grafted to a CNM, and optionally (d) an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the polyolefin of the CNM-g-polyolefin and the thermoplastic polymer, when included, and at a shear rate sufficiently high to disperse the CNM-g-polyolefin in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form the CNM-g-polyolefin particles; and separating the CNM-g-polyolefin particles from the carrier fluid.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 17, 2022
    Applicant: Xerox Corporation
    Inventors: Shivanthi Easwari Sriskandha, Valerie M. Farrugia
  • Publication number: 20220363800
    Abstract: A nonlimiting example method of forming highly spherical carbon nanomaterial-graft-polyurethane (CNM-g-polyurethane) particles may comprising: mixing a mixture comprising: (a) carbon nanomaterial-graft-polyurethane (CNM-g-polyurethane), wherein the CNM-g-polyurethane particles comprises: a polyurethane grafted to a carbon nanomaterial, (b) a carrier fluid that is immiscible with the polyurethane of the CNM-g-polyurethane, optionally (c) a thermoplastic polymer not grafted to a CNM, and optionally (d) an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the polyurethane of the CNM-g-polyurethane and the thermoplastic polymer, when included, and at a shear rate sufficiently high to disperse the CNM-g-polyurethane in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form CNM-g-polyurethane particles; and separating the CNM-g-polyurethane particles from the carrier fluid.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 17, 2022
    Applicant: Xerox Corporation
    Inventors: Robert Claridge, Valerie M. Farrugia, Shivanthi Easwari Sriskandha
  • Patent number: 11498354
    Abstract: A multilayer imaging blanket for a variable data lithography system, including a multilayer base including a sulfur-containing layer; and a cured topcoat layer including a polyurethane in contact with the sulfur-containing layer of the multilayer base.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: November 15, 2022
    Assignee: XEROX CORPORATION
    Inventors: Varun Sambhy, Peter J. Knausdorf, Ngoc-Tram Le, Santokh S. Badesha, Jack T. LeStrange
  • Patent number: 11499873
    Abstract: 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.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: November 15, 2022
    Assignee: XEROX CORPORATION
    Inventors: Christopher Douglas Atwood, Erwin Ruiz, David M. Kerxhalli, Douglas K. Herrmann, Linn C. Hoover, Derek A. Bryl, Ali R. Dergham
  • Publication number: 20220355536
    Abstract: A 3D printer includes a nozzle and a camera configured to capture an image, a video, or both of a plurality of drops of liquid metal being jetted through the nozzle. The 3D printer also includes a computing system configured to measure a signal proximate to the nozzle based at least partially upon the image, the video, or both. The computing system is also configured to determine one or more metrics that characterize a behavior of the drops based at least partially upon the signal.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 10, 2022
    Applicants: PALO ALTO RESEARCH CENTER INCORPORATED, XEROX CORPORATION
    Inventors: Raja Bala, Vijay Kumar Baikampady Gopalkrishna, Palghat Ramesh, David Allen Mantell, Peter Michael Gulvin, Mark A. Cellura
  • Publication number: 20220355535
    Abstract: A method includes capturing a video of a plurality of drops being jetted through a nozzle of a printer. The method also includes measuring a signal proximate to the nozzle based at least partially upon the video. The method also includes determining one or more metrics that characterize a behavior of the drops based at least partially upon the signal.
    Type: Application
    Filed: May 7, 2021
    Publication date: November 10, 2022
    Applicants: PALO ALTO RESEARCH CENTER INCORPORATED, XEROX CORPORATION
    Inventors: Raja Bala, Vijay Kumar Baikampady Gopalkrishna, Palghat Ramesh, David Allen Mantell, Peter Michael Gulvin, Mark A. Cellura
  • Patent number: 11491806
    Abstract: A print system and a method for confirming complete curing of a marking material are disclosed. For example, the print system includes a plurality of printheads arranged in a two-dimensional array, a curing light source, a curing confirmation system, a movable member to hold an object and a controller to control movement of the movable member to move the object past the array of printheads, to operate the plurality of printheads to eject the marking material onto the object as the object passes the two-dimensional array of printheads, to operate the curing light source to cure the marking material and to operate the curing confirmation system to confirm that the curing of the marking material is complete.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: November 8, 2022
    Assignee: Xerox Corporation
    Inventors: Anthony S. Condello, Jack T. LeStrange, Peter J. Knausdorf, Mandakini Kanungo, Xin Yang
  • Patent number: 11491732
    Abstract: A three-dimensional object printer comprises a platen, a gantry positioned above the platen, an ejector head positioned on the gantry, a sensor, and a controller. The controller is configured to operate the ejector to eject at least one drop of material toward the platen at an upper build level and determine process and cross-process differentials between a fiducial and the at least one drop of material deposited on the upper build surface. The controller is also configured to determine an ejector head shift in a process direction and a cross-process direction associated with each of the plurality of build levels based at least in part on the determined process and cross-process differentials and a number of build levels between the base build level and the upper build level.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: November 8, 2022
    Assignee: Xerox Corporation
    Inventors: Jack T. LeStrange, Alex S. Brougham, Matthew R. McLaughlin, James L. Giacobbi, Victoria L. Warner
  • Patent number: 11493328
    Abstract: According to aspects of the embodiments, there is provided a method of measuring the amount of fountain solution employed in a digital offset lithography printing system. Fountain solution thickness is measured using a diffractive optical element (DOE) configured with grating surfaces varying in a periodic fashion to hold an amount of fountain solution. When radiated with a light source the combination of the grating surface and the fountain solution therein reduces the scattering of the surface structure (“contrast”) that gives rise to a diffraction pattern. The diffractive optical element can be placed on the printing blanket of the lithography printing system or on a separate substrate.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: November 8, 2022
    Assignee: Xerox Corporation
    Inventors: Chu-heng Liu, Paul J. McConville, Jason M. Lefevre, Douglas K. Herrmann, Seemit Praharaj
  • Publication number: 20220350278
    Abstract: Printing apparatuses include a photoreceptor adapted to print an image by applying marking material to print media, a fuser adapted to heat the marking material on the print media, and a controller. The controller determines the amount of marking material per unit area of the image before the fuser heats the marking material on the print media. The controller rasterizes the image to produce a bitmap of the image, but the amount of marking material per unit area for the image is determined before completion of rasterization and marking of the image. The controller also adjusts the operating temperature of the fuser to a fusing temperature based on the amount of marking material per unit area of the image, causes the photoreceptor to print the image on the print media using the bitmap of the image, and causes the fuser to fuse the marking material to the print media.
    Type: Application
    Filed: April 28, 2021
    Publication date: November 3, 2022
    Applicant: Xerox Corporation
    Inventors: Michael J. Wilsher, John R. Washington, Graeme A. Adams
  • Publication number: 20220350548
    Abstract: A system and method are provided wherein, in at least one form, artificial intelligence is used to identify objects in a document to be considered for metallic rendering or printing on a substrate. Then, the options for printing, including the considerations for rendering in metallic toner or ink, are, in at least one form, presented to the user for acceptance or rejection before the actual printing is initiated.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 3, 2022
    Applicant: Xerox Corporation
    Inventors: David C. CRAIG, Eliud ROBLES FLORES, Lee C. MOORE, Paul Roberts CONLON
  • Patent number: 11485110
    Abstract: A printed sheet fiber entanglement apparatus entangles fibers from neighboring printed fibrous layers (e.g., sheets) with one another. As a stack of printed fibrous sheets is built up, periodically a holey plate is loaded against the top sheet of the stack. The guide plate may move the sheet down over the registration pins, and then an array of felting needles are thrust into the stack. An array of needles with upward and/or downward facing barbs is thrust thought holes in the guide plate into the stack through printed sheets closest to the guide plate. As the needles pushed into or are withdrawn from the stack, barbs on the felting needles intertwine fibers from the fibrous sheets through printed marking material and with neighboring sheets. The needle array may translate slightly between multiple thrusts so that a subsequent needling thrust may occur in a slightly new location.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 1, 2022
    Assignee: Xerox Corporation
    Inventor: Paul M. Fromm
  • Patent number: 11485089
    Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to maintain a temperature of an uppermost layer of a 3D metal object being formed within a temperature range conducive for bonding between the uppermost layer and a next layer to be formed. A controller of the system compares a temperature of the uppermost layer with at least a low end temperature of the temperature range and operates an electrical resistance switching network using 3D model data to provide electrical power selectively to heating elements in a modular heater to heat the 3D metal object being formed when the temperature indicated by the signal from the sensor is less than the predetermined temperature.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 1, 2022
    Assignee: Xerox Corporation
    Inventors: Ali R. Dergham, Douglas K. Herrmann, Christopher D. Atwood, Erwin Ruiz, Derek A. Bryl, Linn C. Hoover
  • Publication number: 20220344713
    Abstract: A biodegradable solid aqueous electrolyte composition, an electrochemical device incorporating the electrolyte composition, and methods for the same are provided. The electrolyte composition may include a hydrogel of a copolymer and a salt dispersed in the hydrogel. The copolymer may include at least two polycaprolactone chains attached to a polymeric center block. The electrochemical device may include an anode, a cathode, and the electrolyte composition disposed between the anode and the cathode. The electrolyte composition may include a crosslinked, biodegradable polymeric material that is radiatively curable prior to being crosslinked.
    Type: Application
    Filed: August 19, 2020
    Publication date: October 27, 2022
    Applicants: XEROX CORPORATION, NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Naveen CHOPRA, Nan-Xing HU, Gregory McGUIRE, Robert BLACK, Alexis LAFORGUE, Edmond LAM, Chi Woon LEUNG, Yali LIU, Sophie REGNIER, Nathalie CHAPLEAU, Asmae MOKRINI
  • Patent number: 11483442
    Abstract: A method is disclosed. For example, the method executed by a processor of a multi-function device (MFD) includes monitoring operating parameters of a component in the MFD, calculating a life set point for the component based on the operating parameters, and changing a default life set point for the component stored in a memory of the MFD to the life set point that is calculated based on the operating parameters.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: October 25, 2022
    Assignee: Xerox Corporation
    Inventors: Rachel Lynn Tanchak, Erwin Ruiz, Carlos M. Terrero, Kareem Tawil, Linn C. Hoover
  • Patent number: 11478991
    Abstract: A system for determining a temperature of an object includes a three-dimensional (3D) printer configured to successively deposit a first layer of material, a second layer of material, and a third layer of material to form the object. The 3D printer is configured to form a recess in the second layer of material. The material is a metal. The system also includes a temperature sensor configured to be positioned at least partially with the recess and to have the third layer deposited thereon. The temperature sensor is configured to measure a temperature of the first layer of material, the second layer of material, the third layer of material, or a combination thereof.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: October 25, 2022
    Assignee: XEROX CORPORATION
    Inventors: Christopher Douglas Atwood, Erwin Ruiz, David M. Kerxhalli, Douglas K. Herrmann, Linn C. Hoover, Derek A. Bryl, Ali R. Dergham
  • Patent number: 11478979
    Abstract: An apparatus and a method for fabricating a magnetic material with variable magnetic alignment are disclosed. For example, the apparatus includes a reservoir storing magnetic particles, a heater coupled to the reservoir to melt the magnetic particles, a nozzle coupled to the reservoir to receive the magnetic particles that are melted, wherein the nozzle includes a rotatable collar that includes at least one magnet, a platform below the nozzle to receive the magnetic particles that are melted that are dispensed by the nozzle, and a controller communicatively coupled to the heater, the nozzle, and the platform to control operation of the heater, the nozzle, the rotatable collar of the nozzle, and the platform.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: October 25, 2022
    Assignee: Xerox Corporation
    Inventors: Christopher D. Blair, David C. Irving, Jay L. Schneider
  • Patent number: 11481162
    Abstract: A system and method are provided which enable a print media color to be used, as a replacement for a mixture of one or more colorants, in rendering portions of a print job. One or more multidimensional look-up tables are provided. Each table provides for an identified input color, in a device-independent space, to be equated to no colorant, when printed on the respective print media. The identified input color is one of a set of input colors, which, when printed and measured, has an output color that is closest to a measured color of the print media.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: October 25, 2022
    Assignee: XEROX CORPORATION
    Inventors: Deepthi Sidavanahalli Rao, Thomas L. Pierce, Stephen M. Kroon
  • Patent number: D968508
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: November 1, 2022
    Assignee: Xerox Corporation
    Inventors: Donald A. Brown, David M. Parsons, Michael C. Kowalski, Howard S. Ryan