Patents Assigned to Xerox
  • Airflow control through vacuum platen of a printing system, and related devices, systems, and methods
    Patent number: 11890863
    Abstract: A printing system comprises an ink deposition assembly and a media transport device. The ink deposition assembly comprises printheads to deposit a print fluid, such as ink, on print media, such as paper. The media transport device holds the print media against a movable support surface, such as a belt, by vacuum suction platen and transports the print media though a deposition region. The vacuum suction is communicated to the movable through platen holes and platen channels in a vacuum platen. At least some of the platen channels have a high impedance region that has a reduced open cross-sectional area as compared to another region of the platen channel.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: February 6, 2024
    Assignee: XEROX CORPORATION
    Inventors: Anthony Salvatore Condello, Peter John Knausdorf, Jack T. Lestrange, Palghat S. Ramesh, Joseph C. Sheflin
  • Method of controlling the placement of micro-objects
    Patent number: 11891299
    Abstract: Disclosed are methods and systems of controlling the placement of micro-objects on the surface of a micro-assembler. Control patterns may be used to cause phototransistors or electrodes of the micro-assembler to generate dielectrophoretic (DEP) and electrophoretic (EP) forces which may be used to manipulate, move, position, or orient one or more micro-objects on the surface of the micro-assembler. A set of micro-object may be analyzed. Geometric properties of the set of micro-objects may be identified. The set of micro-objects may be divided into multiple sub-sets of micro-objects based on the one or more geometric properties and one or more control patterns.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: February 6, 2024
    Assignee: Xerox Corporation
    Inventors: Anne Plochowietz, Matthew Shreve
  • Fracturable support structure and method of forming the structure
    Patent number: 11890677
    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 being formed by exposing a print material with a gas reactant. A three-dimensional build is also disclosed.
    Type: Grant
    Filed: December 23, 2021
    Date of Patent: February 6, 2024
    Assignee: XEROX CORPORATION
    Inventor: Daniel Bullard
  • System and method for compensating for vibrations in an inkjet printer
    Patent number: 11890873
    Abstract: An inkjet printer detects vibrations within the printer and compensates for the detected vibrations by adjusting a gap between the printheads and the media transport. Additionally, the inkjet printer detects media sheet heights that may cause damage as they pass through the print zone of the printer and adjusts the gap to enable the media sheets to pass through the print zone without contacting the printheads. A method of operating an inkjet printer so configured is also disclosed.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: February 6, 2024
    Assignee: Xerox Corporation
    Inventors: Ron E. Dufort, Elizabeth L Barrese, Dara N. Lubin, Matthew J. Ochs
  • Method and system for operating a metal drop ejecting three-dimensional (3D) object printer to compensate for drop size variations
    Patent number: 11886759
    Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for displacement errors that occur during object formation. In the method, image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object and compared to original 3D object design data of the object to identify one or more displacement errors. For the displacement errors outside a predetermined difference range, the method modifies machine-ready instructions for forming metal object layers not yet formed to compensate for the identified displacement errors and operates the 3D metal object manufacturing system using the modified machine-ready instructions.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: January 30, 2024
    Assignee: Xerox Corporation
    Inventors: David A. Mantell, Christopher T. Chungbin, Daniel R. Cormier, Scott J. Vader, Zachary S. Vader, Viktor Sukhotskiy, Raja Bala, Walter Hsiao
  • 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
  • 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
  • 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
  • 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 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
  • System and method for printing documents with texture
    Patent number: 11884088
    Abstract: An aqueous inkjet printer also ejects drops of UV material on an aqueous ink image and exposes the aqueous ink image and the UV material to UV radiation before passing the aqueous ink image and UV material through a thermal dryer. The exposure to UV radiation pins the UV material to the aqueous ink image and underlying substrate and the thermal dryer fixes the aqueous ink image to the substrate while releasing free radicals from the UV material. Thus, the printer produces textured prints that do not have free radicals that can irritate skin or produce noxious odors.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: January 30, 2024
    Assignee: Xerox Corporation
    Inventors: Joseph F. Casey, Christopher D. Atwood, Joseph M. Ferrara, Jr., Frank B. Tamarez Gomez, Jacob McCarthy
  • 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 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Display screen with icon
    Patent number: D1012964
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: January 30, 2024
    Assignee: Xerox Corporation
    Inventor: Shane M. Jewitt