Patents Assigned to Xerox Corporation
  • System and method for printing color images on substrates in an inkjet printer
    Patent number: 11884086
    Abstract: A color inkjet printer includes an electrode that emits an electric field into a gap between a printhead and a media transport that carries media past the printhead. Image data generated by an optical sensor after an ink image is printed on the media is analyzed to measure at least one image quality metric. When the measured image quality metric is outside of a tolerance range, the voltage of a voltage source electrically connected to the electrode is adjusted to improve the wetting of the media type with the ink ejected by the printhead.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: January 30, 2024
    Assignee: Xerox Corporation
    Inventors: Palghat S. Ramesh, Jack T. LeStrange, Anthony S. Condello, Joseph C. Sheflin, Peter Knausdorf
  • Spherical particles comprising carbon nanomaterial-graft-polyolefin and methods of production and uses thereof
    Patent number: 11884763
    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: Grant
    Filed: May 17, 2021
    Date of Patent: January 30, 2024
    Assignee: Xerox Corporation
    Inventors: Shivanthi Easwari Sriskandha, Valerie M. Farrugia
  • Printing device with cylindrical intermediate transfer member
    Patent number: 11886133
    Abstract: A transfer member for a printing device includes a shaft, a rigid cylindrical core member, mounted on the shaft, an outer layer supported on the rigid cylindrical core member, and optionally a conformable intermediate layer, spacing the cylindrical core member from the outer layer. The outer layer defines an outer surface of the transfer member, and is configured for receiving a toner image thereon. The cylindrical core and outer layer have a same axis of rotation as the shaft. The rigid cylindrical core and/or the conformable intermediate layer, where present may be electrically biased, relative to a photoconductor drum of the printing device.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: January 30, 2024
    Assignee: XEROX CORPORATION
    Inventors: Eliud Robles Flores, Paul F Sawicki, Douglas A Gutberlet, Varun Sambhy
  • System and method for providing three-dimensional object structural support with a multi-nozzle extruder
    Patent number: 11884011
    Abstract: A method of operating a multi-nozzle extruder in an additive manufacturing system enables support structure to be formed while an object is also being formed. The method includes opening more than one nozzle in the multi-nozzle extruder, and operating an actuator with a controller to move the multi-nozzle extruder along a path to form a first group of multiple parallel ribbons of support structure simultaneously with material extruded from the more than one open nozzle.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 30, 2024
    Assignee: Xerox Corporation
    Inventors: David A Mantell, Jason O'Neil, Christopher G. Lynn, Peter J. Nystrom
  • System and method for operating a material drop ejecting three-dimensional (3D) object printer to prevent quantization error in perimeters of a three-dimensional printed object
    Patent number: 11883881
    Abstract: A slicer in a material drop ejecting three-dimensional (3D) object printer determines the number of material drops to eject to form a perimeter in an object layer and distributes a quantization error over the layers forming the perimeter. The slicer also identifies the location for the first material drop ejected to form the perimeter using a blue noise generator.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: January 30, 2024
    Assignee: Xerox Corporation
    Inventors: Stuart A. Schweid, David A. Mantell, Christopher T. Chungbin, David G. Tilley, Walter Hsiao, PriyaankaDevi Guggilapu, Daniel Cormier, Dinesh Krishna Kumar Jayabal
  • THERMOPLASTIC POLYESTER PARTICLES AND METHODS OF PRODUCTION AND USES THEREOF
    Publication number: 20240026104
    Abstract: A method of producing thermoplastic particles may comprise: mixing a melt emulsion comprising (a) a continuous phase that comprises a carrier fluid having a polarity Hansen solubility parameter (dP) of about 7 MPa0.5 or less, (b) a dispersed phase that comprises a dispersing fluid having a dP of about 8 MPa0.5 or more, and (c) an inner phase that comprises a thermoplastic polyester at a temperature greater than a melting point or softening temperature of the thermoplastic polyester and at a shear rate sufficiently high to disperse the thermoplastic polyester in the dispersed phase; and cooling the melt emulsion to below the melting point or softening temperature of the thermoplastic polyester to form solidified particles comprising the thermoplastic polyester.
    Type: Application
    Filed: October 4, 2023
    Publication date: January 25, 2024
    Applicant: Xerox Corporation
    Inventors: Hojjat Seyed JAMALI, Valerie M. FARRUGIA
  • System and method for scheduling printhead purging in an inkjet printer
    Patent number: 11878530
    Abstract: A method of inkjet printer operation indicates a need for printhead purging without requiring analysis of printed images to detect streakiness in the images. The method compares terms of a histogram of a filtered response of an inkjet status vector to a streakiness metric to determine whether the distribution of inoperative inkjets in a printhead enables missing ink techniques to be used to compensate for inoperative inkjets in the printhead.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: January 23, 2024
    Assignee: Xerox Corporation
    Inventor: Stuart A Schweid
  • System and method for content creation via interactive layers
    Patent number: 11880930
    Abstract: A system and method for content creation via interactive layers is provided. A mutable general object on which to build an artefact is stored. The mutable general object includes a plurality of n-dimensional data units capable of being rendered in a multi-dimensional display. An environment represented by the artefact is displayed. The artefact includes layers that each represent a different characteristic of the environment. Each layer includes a generator and layer parameters. A unique identifier is assigned to each layer. The identifiers for the layers of the artefact are composited and the composited identifiers are stored. Upon accessing the composited identifiers, the artefact is reconfigured for display using the generator and layer parameters from each of the layers.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: January 23, 2024
    Assignee: XEROX CORPORATION
    Inventors: Jacob Le, Gregory Michael Youngblood, Robert Thomas Krivacic, Jichen Zhu
  • Metal drop ejecting three-dimensional (3D) object printer and method of operation for forming metal support structures
    Patent number: 11878349
    Abstract: A three-dimensional (3D) metal object manufacturing apparatus is equipped with two solid metal moving mechanisms that are independently operated to move two different metals into the receptacle of a vessel in a melted metal drop ejecting apparatus. The ejector is operated to form object features with melted metal drops of one of the two different metals and to form support features with melted metal drops of the other of the two different metals. The thermal expansion coefficients of the two metals are sufficiently different that the support features easily separate from the object features after the object and support features cool.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: January 23, 2024
    Assignee: Xerox Corporation
    Inventors: Seemit Praharaj, Douglas K. Herrmann, Thomas J. Wyble, Jason M. LeFevre, Chu-Heng Liu, Paul J. McConville
  • Three dimensional enhancement of two dimensional printed images
    Patent number: 11872768
    Abstract: An MFD is disclosed. For example, the MFD includes a color printhead to dispense color printing fluid, an enhancement printhead to dispense a three-dimensional (3D) print material, a processor and a non-transitory computer-readable medium storing a plurality of instructions. The instructions when executed by the processor cause the processor to perform operations that include printing a two-dimensional (2D) image on a substrate and printing a 3D object on the 2D image printed on the substrate such that colors of the 2D image provide a desired color for a desired portion of the 3D object.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: January 16, 2024
    Assignee: Xerox Corporation
    Inventors: Stuart A. Schweid, Martin L. Frachioni, David A. Vankouwenberg, Christopher Mieney
  • Infrared effect preserved on copy
    Patent number: 11872833
    Abstract: Methods and system for creating an infrared effect that can survives copying, can involve providing a metameric pair of pattern inks, wherein a first pattern ink reflects higher in an infrared spectrum as compared to a second pattern ink among the metameric pair of pattern inks, wherein the second pattern ink is less reflective than the first pattern ink. For the second pattern ink that is less reflective than the first pattern ink, a pattern can be created for the second pattern ink that is larger and less scattered than an existing design for a pattern ink. A color of media can be used as a common color for the metameric pair of patterns and inks to create an infrared effect from the metameric pair of pattern inks that survives copying on the media.
    Type: Grant
    Filed: November 27, 2021
    Date of Patent: January 16, 2024
    Assignee: XEROX CORPORATION
    Inventor: Edward N. Chapman
  • Printer jetting mechanism and printer employing the printer jetting mechanism
    Patent number: 11872751
    Abstract: A three-dimensional (“3D”) printer. The 3D printer comprises a plurality of ejector conduits arranged in an array, each ejector conduit comprising a first end positioned to accept a print material, a second end comprising an ejector nozzle, and a passageway defined by an inner surface of the ejector conduit for allowing the print material to pass through the ejector conduit from the first end to the second end.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: January 16, 2024
    Assignee: XEROX CORPORATION
    Inventor: David K. Biegelsen
  • Polymer electrolyte membrane with platelets
    Patent number: 11876268
    Abstract: A polymer electrolyte membrane includes an ion-conducting polymeric electrolyte material and platelets, distributed through the polymeric electrolyte material. The platelets have an aspect ratio of length to thickness of at least 2:1. The platelets are aligned generally parallel to a length of the membrane. The platelets can be functionalized with free radical scavengers, or other moieties, to extend the lifetime of the membrane or of a membrane electrode assembly incorporating the membrane.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: January 16, 2024
    Assignee: XEROX CORPORATION
    Inventors: Elif Karatay, Kathryn F. Murphy, Mahati Chintapalli
  • System and method for separating solvent from a fluid
    Patent number: 11872528
    Abstract: An electrochemical system has a first reservoir receiving a feed stream. The feed stream includes a solvent and a solute different than the salt. A second reservoir receives a brine stream with a higher salt concentration higher than the feed stream. Electrodes contact a loop of redox-active electrolyte material causing reversible redox reactions. The reactions cause the loop to accept a first ion from the salt in the first reservoir and drive a second ion into the brine stream in the second reservoir. Three ionic exchange membranes of alternating type define the first and second reservoirs. A concentrate stream is output from the first reservoir, the concentrate stream having a second solute concentration greater than the first solute concentration.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: January 16, 2024
    Assignee: XEROX CORPORATION
    Inventors: Eugene S. Beh, Michael Benedict
  • Methods and systems for transferring printing rights in secure printing environment
    Patent number: 11875071
    Abstract: The present disclosure discloses methods and systems for transferring rights, to release a secure print job from one user to another user. The rights to release the secure print job can be transferred based on a request from a primary user i.e., the user who submits the secure print job or based on a request from a secondary user i.e., the user who wants to release the secure print job on behalf of the primary user. Based on the request from any user, a multi-function device transfers rights to release the secure print job from the primary user to the secondary user. Here, transferring rights includes changing ownership of the secure print job from the primary user to the secondary user. Upon successful changing the ownership, the secondary user releases the secure print job originally submitted by the primary user.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: January 16, 2024
    Assignee: Xerox Corporation
    Inventor: Srinivasarao Bindana
  • FRACTURABLE SUPPORT STRUCTURE AND METHOD OF FORMING THE STRUCTURE
    Publication number: 20240009934
    Abstract: An embodiment of the present disclosure is directed to a method of additive manufacturing. The method comprises: i) forming a first layer, the first layer comprising at least one material chosen from an article material, a support structure material and a fracturable material; ii) forming an additional layer on the first layer, the additional layer comprising at least one material chosen from the article material, the support structure material and the fracturable material; and iii) repeating ii) one or more times to form a three-dimensional build comprising an article and at least one support structure attached to the article at an interface, the interface comprising the fracturable material formed during one or more of i), ii) or iii), the fracturable material comprising a polymer. A three-dimensional build is also disclosed.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 11, 2024
    Applicant: XEROX CORPORATION
    Inventors: Junhua Wei, Daniel Bullard, Gabriel Iftime
  • FRACTURABLE SUPPORT STRUCTURE AND METHOD OF FORMING THE STRUCTURE
    Publication number: 20240009935
    Abstract: An embodiment of the present disclosure is directed to a method of additive manufacturing. The method comprises: i) forming a first layer, the first layer comprising at least one material chosen from an article material, a support structure material and a fracturable material; ii) forming an additional layer on the first layer, the additional layer comprising at least one material chosen from the article material, the support structure material and the fracturable material; and iii) repeating ii) one or more times to form a three-dimensional build comprising an article and at least one support structure attached to the article at an interface, the interface comprising the fracturable material formed during one or more of i), ii) or iii), the fracturable material comprising a salt. A three-dimensional build is also disclosed.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 11, 2024
    Applicant: XEROX CORPORATION
    Inventors: Gabriel Iftime, Daniel Bullard, Junhua Wei
  • Fast fabrication of fiber reinforced polymers using solid epoxy powder containing an initiator
    Patent number: 11866559
    Abstract: A method of manufacturing includes producing a powder resin comprising a polymer precursor and a thermal initiator, packing a fiber structure with the powder resin, resulting in a resin-packed structure, and heating the resin-packed structure to a curing temperature high enough to melt and cure the resin-packed structure to form a final structure.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: January 9, 2024
    Assignee: XEROX CORPORATION
    Inventors: Junhua Wei, Gabriel Iftime, Michael Benedict, Mahati Chintapalli
  • Particles comprising polyamides with in-backbone optical absorbers and related methods
    Patent number: 11866581
    Abstract: A method for producing highly spherical polymer particles comprising a polyamide having an optical absorber in a backbone of the polyamide (IBOA-polyamide) may comprise: mixing a mixture comprising the IBOA-polyamide, a carrier fluid that is immiscible with the IBOA-polyamide, and optionally an emulsion stabilizer at a temperature greater than a melting point or softening temperature of the IBOA-polyamide and at a shear rate sufficiently high to disperse the IBOA-polyamide in the carrier fluid; and cooling the mixture to below the melting point or softening temperature of the IBOA-polyamide to form particles comprising the IBOA-polyamide and the emulsion stabilizer, when present, associated with an outer surface of the particles.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 9, 2024
    Assignee: Xerox Corporation
    Inventors: Valerie M. Farrugia, Mihaela Maria Birau
  • Computer-implemented system and method for object tracking via identifier-tracker pairings
    Patent number: 11867825
    Abstract: A computer-implemented system and method for object tracking via identifier-tracker pairings is provided. At least one tracker-identifier pair is maintained. The tracker is associated with an entity, including a person or object. The identifier is accessed to locate the entity. The tracker associated with the identifier is identified and a location of the entity is determined based on a location of the tracker. The location of the entity is provided to the user.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: January 9, 2024
    Assignee: XEROX CORPORATION
    Inventors: Christopher L. Chua, Ashish V. Pattekar