Patents Assigned to Xerox Corporation
  • Patent number: 11325799
    Abstract: A vacuum roller system and a method of operation the vacuum roller system can include an assembly of interdigitated rollers, and a vacuum system, wherein the assembly of interdigitated rollers is operably connected to the vacuum system to move sheets of media through a downstream dryer in a printer, wherein a vacuum is drawn between individual rollers among the assembly of interdigitated rollers so that the vacuum is distributed across a sheet of media and is split around the individual rollers. The spacing between the individual rollers among the assembly of interdigitated rollers is variable to vary the vacuum.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 10, 2022
    Assignee: Xerox Corporation
    Inventors: Douglas K. Herrmann, Seemit Praharaj, Michael J. Levy, Jason M. Lefevre, Paul McConville, Chu-heng Liu, Linn C. Hoover, David A. VanKouwenberg
  • Patent number: 11326026
    Abstract: Reversibly crosslinkable compositions are provided for forming removable crosslinked films. A reversibly crosslinkable composition may comprise entangled chains of a polysiloxane comprising pendant functional groups having formula —NH—(C?O)—X—COOH, wherein X is an alkyl group, an alkenyl group, or an aryl group; a plurality of inorganic oxide nanoparticles; and a solvent; wherein non-covalent bonds between the pendant functional groups and the inorganic oxide nanoparticles crosslink the entangled chains to form a polymeric matrix in the absence of the solvent, wherein the non-covalent bonds dissociate and the polymeric matrix collapses in the presence of water and heat.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: May 10, 2022
    Assignee: Xerox Corporation
    Inventor: Christina Resetco
  • Patent number: 11327700
    Abstract: Various systems and methods maintain a print job of a user in a print queue and identify the user approaching a printing device using a user identification device operatively connected to the printing device. Such systems/methods alter the position of the print job within the print queue (e.g., to a higher priority position) or even begin printing the print job when the user identification device identifies the user approaching the printing device (i.e., before the user reaches the printing device). Systems and methods can also identify the urgency of the user using the user identification device. The amount that the print queue is altered can be based on the amount that the urgency of the user is elevated.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: May 10, 2022
    Assignee: Xerox Corporation
    Inventors: Elizabeth M. Crossen, Ron E. Dufort, Dara N. Lubin
  • Patent number: 11325302
    Abstract: A system and method are provided enabling higher precision in composite based additive manufacturing (‘AM”). The method includes staging a fibrous material such as carbon fiber sheets by potentially cutting to length and placing a sheet onto an elevator. Above the elevator is a gantry that holds a moveable print head and a powder deposition device as well as an excess powder recapture device. A liquid is placed onto the fiber by the print head such that when the subsequent step of dusting the area with a plastic powder, the powder sticks to the area where the liquid was imaged. Subsequently, excess powder is removed and pressure and potentially heat are applied to sinter the layer and compress to the desired height.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 10, 2022
    Assignee: Xerox Corporation
    Inventor: James Lawton Giacobbi
  • Publication number: 20220135716
    Abstract: Additive manufacturing processes featuring consolidation of thermoplastic particulates may form printed objects in a range of shapes. Inorganic nanoparticles disposed upon the outer surface of the thermoplastic particulates may improve flow performance of the thermoplastic particulates during additive manufacturing, but may be undesirable to incorporate in some printed objects. Polymer nanoparticles may be substituted for inorganic nanoparticles in some instances to address this difficulty and provide other advantages. Particulate compositions suitable for additive manufacturing may comprise: a plurality of thermoplastic particulates comprising a thermoplastic polymer and a plurality of polymer nanoparticles disposed upon an outer surface of the thermoplastic particulates, the polymer nanoparticles comprising a crosslinked fluorinated polymer.
    Type: Application
    Filed: November 2, 2020
    Publication date: May 5, 2022
    Applicant: Xerox Corporation
    Inventors: Nan-Xing Hu, Kimberly D. Nosella, Richard Philip Nelson Veregin, Yulin Wang, Raysa Rodriguez Diaz
  • Publication number: 20220138116
    Abstract: A downloaded app controls a device to recognize whether a connected card reader is an unsupported card reader or whether an unsupported card is supplied to the connected card reader. The app automatically generates support for the unsupported card reader or unsupported card by reading the identifying information from the unsupported card reader or unsupported card, modifying an existing driver support file by adding the identifying information to the existing driver support file to create a modified driver support file, and testing the unsupported card reader or unsupported card using the modified driver support file. If the tests are successful, the app then supplies the modified driver support file to other devices separate from the printer.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 5, 2022
    Applicant: Xerox Corporation
    Inventors: Joseph H. Lang, Christopher L. Stone
  • Patent number: 11318671
    Abstract: A web sheet processing system for cutting and/or stacking AM composite printed sheets from the web combines web edge waste with the cut sheets, stacking the waste with the 3D object. The waste may be removed during the cleaning of the 3d object (e.g., by abrasive blasting, chemical removal, dissolution) to result in a 3D printed object. This approach eliminates the separate need for waste removal of a rewound web of substrate material waste. In examples, a tractor drive transport assembly ensures consistent web/sheet motion via tractor feeding along the edges of the web/sheet to a stacker subsystem. The tractor drive transport assembly, in combination with a drive guide, positions the cut sheets over the stacker subsystem for release onto the top of a stack, with the substrate waste that would normally be processed downstream stacked with the 3D object for removal during a normal cleaning of the object.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: Paul N. Richards, Paul M. Fromm
  • Patent number: 11318666
    Abstract: A system for producing three-dimensional objects forms fluid paths within the support structure to facilitate the removal of the support structure following manufacture of the object. The system includes a first ejector configured to eject a first material towards a platen to form an object, a second ejector configured to eject a second material towards the platen to form support for portions of the object, at least one portion of the support having a body with at least one fluid path that connects at least one opening in the body to at least one other opening in the body, and a fluid source that connects to the at least one fluid path of the support to enable fluid to flow through the at least one fluid path to remove at least an inner portion of the support from the object.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: David A. Mantell, Andrew W. Hays, Linn C. Hoover, Ron E. Dufort, Erwin Ruiz, Patrick J. Howe
  • Patent number: 11318757
    Abstract: A thread printing system includes a source spool containing thread. The system also includes various print heads, each of which is fluidly connected to an ink tank. The print heads are positioned to direct and apply ink to a segment of the thread as the thread travels along a transport path along from the source spool. The system also includes a fuser having one or more print rollers that are connected to a heating element. The fuser receives the dyed thread and fuses the ink to the thread. The system may include a controller that is configured to apply ink of different colors to different segments of the thread.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: Michael Leo, Brendan C. Casey, Wayne A. Buchar
  • Patent number: 11318733
    Abstract: According to aspects of the embodiments, there is provided a method of determining the amount of fountain solution employed in a digital offset lithography printing system. Fountain solution thickness is determined from diagnostic images that are printed and analyzed using the existing Image Based Controls (IBC). An analysis of the density of solids, halftones, and background as a function of the fountain solution control parameter is performed to decide on the appropriate level of fountain solution. A latitude window of control parameters is then derived for which the digital offset lithography printing system in operation minimizes the undesirable effects of too much or too little fountain solution.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: Mark J. Hirsch, David C. Craig, Mark C. Petropoulos, Eliud Robles Flores
  • Patent number: 11318760
    Abstract: An inkjet printer includes a dryer configured to attenuate the effects of temperature differentials arising in substrates that are caused by holes in a media transport belt and a platen covering a vacuum plenum. The dryer includes a heater, a media transport belt cooler, and a media transport belt. The media transport belt is configured to move substrates past the heater after ink images have been formed on the substrates and the media transport belt cooler is positioned to remove heat energy from the media transport belt after the media transport belt has passed the heater and the substrates have separated from the media transport belt. The substrate cooler is configured to reduce a temperature of the media transport belt to a temperature that attenuates image defects arising from temperature differentials in the media transport belt when the media transport belt is opposite the heater.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: Linn C. Hoover, Douglas K Herrmann, Paul J. McConville, Jason M. LeFevre, Seemit Praharaj, David A. VanKouwenberg, Michael J. Levy, Chu-heng Liu, Santokh S. Badesha, Christopher Mieney, David S. Derleth
  • Patent number: 11320737
    Abstract: According to aspects of the embodiments, there is provided a method of measuring the amount of fountain solution using a hot wire anemometer. Fountain solution thickness is measured using the flow rate of vaporized fountain solution and comparing to baseline air only flow rate. The vaporized measurement is correlated with the baseline utilizing specific heat, density and enthalpy values and keeping velocity of fluid constant. Changes in the measurement will then be related to the specific heat, density and enthalpy. Density can be back calculated to yield volume and knowing the area of the image being printed give a real time thickness value.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: Christopher Mieney, David A. Vankouwenberg, Martin L. Frachioni, David M. Gurak, Stuart A. Schweid
  • Patent number: 11320764
    Abstract: A tie attachment assembly, including a first layer including a first surface and a second surface, the first surface including an adhesive, a fold line, and a second layer, including a third surface, a fourth surface connected to the first surface, a first cutout arranged on a first side of the fold line, and a second cutout arranged on a second side of the fold line, opposite the first side.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: David B. Montfort, Edmund T. Varga
  • Patent number: 11321441
    Abstract: The disclosure relates to an authentication approach to grant access to a secure service on an electronic device. The authentication approach includes receiving, via an electronic device, a request to access the secure service. The authentication approach includes determining whether the electronic device is positioned at a location that corresponds to a virtual authentication lock. The authentication approach includes displaying, in response to determining the device is positioned at the location that corresponds to the virtual authentication lock, the virtual authentication lock on a display of the electronic device. The authentication approach includes receiving one or more interactions with the virtual authentication lock. The authentication approach includes determining whether the one or more interactions correspond to one or more authentication interactions related to the virtual authentication lock.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: May 3, 2022
    Assignee: Xerox Corporation
    Inventors: Fritz Francis Ebner, Matthew Leigh Puccini, Aaron Zachary Borden, Matthew David Levesque
  • Publication number: 20220127480
    Abstract: Additive manufacturing processes, such as powder bed fusion of thermoplastic particulates, may be employed to form printed objects in a range of shapes. Formation of printed objects having various colors may sometimes be desirable. Thermoplastic particulates incorporating a color-changing material capable of forming different colors under specified activation conditions may impart different colors to a printed object. Such particulate compositions may comprise a plurality of thermoplastic particulates comprising a thermoplastic polymer and a color-changing material associated with the thermoplastic particulates, wherein the color-changing material is photochromic and thermochromic. Conjugated diynes, such as 10,12-pentacosadiynoic acid or a derivative thereof, may be particularly suitable color-changing materials having photochromic and thermochromic properties for forming a range of colors upon a printed object.
    Type: Application
    Filed: October 28, 2020
    Publication date: April 28, 2022
    Applicant: Xerox Corporation
    Inventor: Cristina Resetco
  • Patent number: 11312585
    Abstract: A method of managing removable mechanical modifications to one or more printing devices, including receiving, by one or more computer processors, an input related to a removable mechanical modification of a printing device of the one or more printing devices, and determining, by the one or more computer processors, a location of the removable mechanical modification.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 26, 2022
    Assignee: Xerox Corporation
    Inventors: Kenneth D. Sanders, Arthur H. Kahn, Dara Nanette Lubin
  • Patent number: 11312049
    Abstract: A 3D printing system applies colored powders (e.g., primary colors, white, black, cyan, magenta, yellow, fluorescent colors, metallic) in printed polymer layers for forming a colored 3D object. The system may stabilize a powder layer or color sub-layers thereof, for example with one or more of heat, pressure, and/or high-intensity light. On each layer, powders of various colors may be sequentially deposited in a halftone pattern and stabilized, so as to create a part with a specified arrangement of colors throughout its structure. Benefits include more stable color than strategies involving jetting colored fluids. The arrangement of color on the interior of the part could provide functional or traceability benefits for specific applications. The examples allow for depositing a greater quantity of powder on each fiber base or substrate, decreasing the ratio of fiber to powder and increasing production speed.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: April 26, 2022
    Assignee: Xerox Corporation
    Inventors: Marc D. Daniels, Wayne A. Buchar, Roger L. Triplett, Martin S. Maltz
  • Patent number: 11312167
    Abstract: A method of forming an image on a print media including releasably securing a fabric layer to a carrier layer, the carrier layer including a first surface including a first area, a second surface opposite the first surface, and a first rigidity, the fabric layer including a third surface, a fourth surface opposite the third surface and including a second area, and a second rigidity less than the first rigidity, and a first adhesive, wherein the fabric layer is secured to the carrier layer by the first adhesive bonding a first portion of the fourth surface to the first surface, applying a first liquid marking material to a first portion of the third surface of the fabric layer, and drying the first liquid marking material to the first portion of the third surface with a first dryer.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: April 26, 2022
    Assignee: Xerox Corporation
    Inventors: Eliud Robles Flores, William G. Osbourne
  • Publication number: 20220118693
    Abstract: Additive manufacturing processes featuring consolidation of thermoplastic particulates may form printed objects in a range of shapes. Nanoparticles disposed upon the outer surface of the thermoplastic particulates may improve flow performance of the thermoplastic particulates during additive manufacturing, but may lead to excessive porosity following consolidation. Excessive porosity may be detrimental for performance applications requiring high mechanical strength. A carboxylic acid-based sintering aid, particularly a metal carboxylate, may decrease porosity of consolidated parts following sintering without substantially increasing blocking in a powder bed. Particulate compositions suitable for additive manufacturing may comprise: a plurality of thermoplastic particulates comprising a carboxylic acid-based sintering aid admixed with a thermoplastic polymer, and a plurality of nanoparticles disposed upon an outer surface of the thermoplastic particulates.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 21, 2022
    Applicant: Xerox Corporation
    Inventors: Robert Claridge, Cristina Resetco, Richard Philip Nelson Veregin
  • Patent number: 11305455
    Abstract: A shaped ceramic or metallic object is formed by sectioning a model of a shaped body into 2-dimensional slices. For each slice, a toner material is electrostatically printed on a polymer sheet. The toner material includes solid particles. The printed sheets are assembled into a stack and the stack is depolymerized and sintered to form the ceramic object.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: April 19, 2022
    Assignee: XEROX CORPORATION
    Inventors: Christopher D. Blair, David C. Irving