Patents by Inventor Joseph M. Ferrara, Jr.

Joseph M. Ferrara, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11552636
    Abstract: An ultra-high resolution capacitive sensor affixed above an imaging member surface measures the thickness of fountain solution on the imaging member surface in real-time during a printing operation. The sensor is considered ultra-high resolution with a resolution high enough to detect nanometer scale thicknesses. The capacitive sensor would initially be zeroed to the imaging member surface. As fluid is added, the capacitive sensor detects the increase and can measure and communicate with the image forming device to adjust fountain solution flow rate to the imaging member surface and correct for any anomalies in thickness. This fountain solution monitoring system may be fully automated. The capacitive sensor may have a resolution (e.g., as low as about 1 nm resolution) of about 0.001% of the distance/gap that the capacitive sensor is mounted away from the imaging member surface.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: January 10, 2023
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., Carlos M. Terrero, Jacob Mccarthy, Roberto A. Irizarry
  • Publication number: 20220379643
    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: Application
    Filed: May 26, 2021
    Publication date: December 1, 2022
    Inventors: Joseph F. Casey, Christopher D. Atwood, Joseph M. Ferrara, JR., Frank B. Tamarez Gomez, Jacob McCarthy
  • Patent number: 11508058
    Abstract: A system and method evaluate defects in printed images. A target image, which has been captured of a printed image, is processed to identify defects, where present, which do not occur in a source image from which the printed image was generated. A trained classification model predicts a defect class for respective regions of the target image, each of the defect classes being drawn from a predefined set of defect classes. For at least one of the identified defects, a measure of severity of the defect is determined, such as a size of the defect. A decision on the acceptability of the printed image is made, based on the measure of severity of the at least one defect and the predicted defect class of a respective one of the regions in which the defect occurs.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: November 22, 2022
    Assignee: XEROX CORPORATION
    Inventors: Christopher Douglas Atwood, Joseph Fredrick Casey, Frank Tamarez Gomez, Joseph M. Ferrara, Jr., Jacob R. McCarthy
  • Publication number: 20220314664
    Abstract: A printing system comprises printheads to eject ink to a deposition region. Print media are held by vacuum suction against a movable support surface, which moves over a vacuum platen. The vacuum platen comprises platen holes through which the vacuum suction is communicated. An airflow control system comprises airflow zones, each comprising a group of the platen holes, a duct, and a valve, the duct and the valve being arranged to selectively control vacuum suction through the group of the platen holes. For each of the printheads, at least one of the airflow zones is located under the respective printhead. Thus, airflow through platen holes under the printheads can be selectively controlled by selectively controlling the vacuum suction in the airflow zones.
    Type: Application
    Filed: March 30, 2021
    Publication date: October 6, 2022
    Applicant: XEROX CORPORATION
    Inventors: Jonathan B. HUNTER, Jeffery John BRADWAY, Joseph M. FERRARA, JR., Frank Berkelys TAMAREZ GOMEZ
  • Publication number: 20220308516
    Abstract: A sheet processing system for automated sheet adjustment includes a sensor system which captures at least a first image of a sheet of print media as the sheet is conveyed on a main transport path between a print media supply module and a marking device of an image rendering module. A control module computes a lateral error for the sheet, based on the captured at least first image, and computes an adjustment based on the computed lateral error. A sheet transport path adjustment mechanism translates a first portion of the main transport path relative to a second portion of the main transport path, based on the computed adjustment.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 29, 2022
    Applicant: Xerox Corporation
    Inventors: Jacob R. McCarthy, Joseph M. Ferrara, JR., Joseph Fredrick Casey, Christopher Douglas Atwood, Frank B. Tamarez Gomez
  • Publication number: 20220309634
    Abstract: A system and method evaluate defects in printed images. A target image, which has been captured of a printed image, is processed to identify defects, where present, which do not occur in a source image from which the printed image was generated. A trained classification model predicts a defect class for respective regions of the target image, each of the defect classes being drawn from a predefined set of defect classes. For at least one of the identified defects, a measure of severity of the defect is determined, such as a size of the defect. A decision on the acceptability of the printed image is made, based on the measure of severity of the at least one defect and the predicted defect class of a respective one of the regions in which the defect occurs.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 29, 2022
    Applicant: Xerox Corporation
    Inventors: Christopher Douglas Atwood, Joseph Fredrick Casey, Frank Tamarez Gomez, Joseph M. Ferrara, JR., Jacob R. McCarthy
  • Patent number: 11427021
    Abstract: An inkjet printhead assembly includes a controller operatively connected to an actuator so the controller can operate the actuator to tilt a carrier plate in which a plurality of printheads are mounted after a purge of the printheads has been performed. The tilt assists gravity in directing the purged ink to a wiper that is moved by another actuator operated by the controller to wipe the faceplates of one or more printhead faceplates in the carrier plate. After the wiper is returned to its home position, the carrier plate is returned to its level position and the printhead assembly is returned to its operational position for printing.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: August 30, 2022
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., David A. VanKouwenberg, Jason M. LeFevre
  • Patent number: 11397549
    Abstract: An image processing system and method provide for receiving a current print job comprising a set of digital page images to be printed on print media sheets, identifying, for each page image, a set of input parameters, the set of input parameters including one or more of a print media sheet weight, a print media sheet size, a print media sheet thickness, a print media sheet porosity, a print media sheet coating, a print media sheet color, and an area coverage. The method further includes generating an adjustment for each page image, based on the set of input parameters and based on stored magnification errors generated for prior printed pages of print jobs, the adjustment being predicted to reduce at least one magnification error when the page image of the current print job is rendered on print media to form a printed image.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: July 26, 2022
    Assignee: Xerox Corporation
    Inventors: Frank B. Tamarez Gomez, Christopher Douglas Atwood, Jacob R. McCarthy, Joseph Fredrick Casey, Joseph M. Ferrara, Jr.
  • Patent number: 11338570
    Abstract: Devices include electrically conductive elements contacting a vacuum belt, and a voltage source connected to the electrically conductive elements. The electrically conductive elements form an electrical circuit from the voltage source, through the belt, and back to the voltage source. The electrically conductive elements are positioned so that they are separated from the belt when the belt moves the sheets of media between the electrically conductive elements and the belt. A processor is capable of identifying leading edges of the sheets of media on the belt (when voltage of the electrical circuit changes from a relatively higher voltage to a relatively lower voltage) and identifying trailing edges of the sheets of media on the belt (when the voltage of the electrical circuit changes from the relatively lower voltage back to the relatively higher voltage).
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: May 24, 2022
    Assignee: Xerox Corporation
    Inventors: Aaron M. Moore, Timothy G. Shelhart, Timothy D. Slattery, Joseph M. Ferrara, Jr., Carlos M. Terrero, Jacob R. McCarthy, Roberto A. Irizarry
  • Patent number: 11293873
    Abstract: The present disclosure relates to using color calibration to improve and increase the accuracy of interpreting color-sensitive results from test strips made of substrates like paper. This is accomplished via a diagnostic test unit including a substrate, at least one region on the substrate, a reagent placed within the region to react, and a series of color legends on the substrate. Different reagent samples may be placed on the separate regions of a substrate for testing. An imaging device is used to capture the reaction results. More precise readings can be obtained by comparing the reaction results to the color legends to determine the measured property of the analyte.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: April 5, 2022
    Assignee: XEROX CORPORATION
    Inventors: Joseph M. Ferrara, Jr., Erwin Ruiz, Martin L. Frachioni
  • Publication number: 20220063313
    Abstract: An inkjet printhead assembly includes a controller operatively connected to an actuator so the controller can operate the actuator to tilt a carrier plate in which a plurality of printheads are mounted after a purge of the printheads has been performed. The tilt assists gravity in directing the purged ink to a wiper that is moved by another actuator operated by the controller to wipe the faceplates of one or more printhead faceplates in the carrier plate. After the wiper is returned to its home position, the carrier plate is returned to its level position and the printhead assembly is returned to its operational position for printing.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 3, 2022
    Inventors: Joseph M. Ferrara, JR., David A. VanKouwenberg, Jason M. LeFevre
  • Publication number: 20210409021
    Abstract: An ultra-high resolution capacitive sensor affixed above an imaging member surface measures the thickness of fountain solution on the imaging member surface in real-time during a printing operation. The sensor is considered ultra-high resolution with a resolution high enough to detect nanometer scale thicknesses. The capacitive sensor would initially be zeroed to the imaging member surface. As fluid is added, the capacitive sensor detects the increase and can measure and communicate with the image forming device to adjust fountain solution flow rate to the imaging member surface and correct for any anomalies in thickness. This fountain solution monitoring system may be fully automated. The capacitive sensor may have a resolution (e.g., as low as about 1 nm resolution) of about 0.001% of the distance/gap that the capacitive sensor is mounted away from the imaging member surface.
    Type: Application
    Filed: June 26, 2020
    Publication date: December 30, 2021
    Inventors: Joseph M. FERRARA, JR., Carlos M. TERRERO, Jacob MCCARTHY, Roberto A. IRIZARRY
  • Patent number: 11203202
    Abstract: An inkjet printhead includes a faceplate mounted to a printhead body. The faceplate has a first area in which an array of inkjet nozzle openings is positioned. The area is covered with a hydrophobic coating. A second area of the faceplate outside of the array of inkjet nozzle openings is covered with a first hydrophilic coating that does not contact the hydrophobic coating covering the first area. A third area of the faceplate between the first area and the second area is covered with a second hydrophilic coating. One end of the third area contacts the hydrophobic coating and another end of the third area contacts the first hydrophilic coating to pull ink emitted onto the hydrophobic coating during a purge operation to the second area of the faceplate.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: December 21, 2021
    Assignee: Xerox Corporation
    Inventors: Jason M. LeFevre, David A. VanKouwenberg, Joseph M. Ferrara, Jr.
  • Patent number: 11052648
    Abstract: A printer is configured with an actuator to rotate a platen about an axis perpendicular to the surface of the platen and an encoder that generates angular data corresponding to the rotation of the platen. A controller operates the actuator to rotate the platen while monitoring the angular data generated by the encoder to ensure accurate rotation of the platen after each layer of an object is printed. By forming successive layers at different angles to one another, the structural integrity of the object is improved over previously known printed objects and the effects of defective ejectors are mitigated without having to substitute operational ejectors for the defective ejectors.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: July 6, 2021
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., Mark A. Atwood
  • Patent number: 10696051
    Abstract: Devices and processes include/use an inkjet printhead, a sheet transport positioned to move sheets of media past the inkjet printhead, a sheet registration device positioned to align the sheets of media, and a controller electrically connected to the inkjet printhead and the sheet registration device. The controller is adapted to periodically control the sheet registration device to align a first sacrificial sheet with a first edge of the sheet transport and align a second sacrificial sheet with a second edge of the sheet transport and that is opposite the first edge. The controller is adapted to control the inkjet printhead to eject ink from a first set of nozzles to the first sacrificial sheet and eject ink from a second set of nozzles to the second sacrificial sheet. The first set of nozzles contains different nozzles from the second set of nozzles.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 30, 2020
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., Carlos M. Terrero, Roberto A. Irizarry, Jacob R. McCarthy
  • Patent number: 10493701
    Abstract: A printer that forms three-dimensional objects has two printheads, one of which is positioned to eject material drops in a direction that is parallel to a plane of a planar member on which an object is formed by the two printheads.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: December 3, 2019
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., Timothy J. Clark, Douglas E. Proctor
  • Patent number: 10442219
    Abstract: Systems, methods, and devices for mitigating print head dry out. In an example embodiment, a system can be implemented, which includes an arrangement of cross rollers and a registration transport for transporting one or more sheets for printing, and a steering mechanism that drives the sheet(s) into the opposing registration print edges of print heads on the registration transportation, wherein the cross rollers only engage when the sheet is being registered to the appropriate edge of the print heads, thereby allowing the print heads to be exercised prior to drying out. When one or more of the sheets are out of the nip, the nip disengages, thereby allowing the next sheet to be stirred on the opposing edge of the registration print heads. The opposing registration print heads comprise an inboard registration edge and an outboard registration edge.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: October 15, 2019
    Assignee: Xerox Corporation
    Inventors: Joseph M. Ferrara, Jr., Stephen B. Williams
  • Publication number: 20190308836
    Abstract: A registration system for a printing device and a method for controlling the same are disclosed. For example, the registration system includes at least one sensor to detect a position of a print media, a platform comprising at least one multi-rotational wheel, and a processor communicatively coupled to the at least one sensor and the at least one multi-rotational wheel, wherein the processor calculates a desired movement of the at least one multi-rotational wheel based on the position of the print media.
    Type: Application
    Filed: April 9, 2018
    Publication date: October 10, 2019
    Inventors: Jacob R. McCarthy, Timothy D. Slattery, Joseph M. Ferrara, JR., James L. Pratt, Dara N. Lubin, Ron Edward Dufort, Elizabeth M. Crossen, Daniel M. McHugh, Rachel Lynn Bierasinski, Frank Berkelys Tamarez Gomez, Paul M. Fromm, Erwin Ruiz
  • Patent number: 10391757
    Abstract: A printer is configured with positioning members that hold components at predetermined positions to enable a controller operating at least one printhead in a three-dimensional object printer to form structure about the components. The positioning members can then be removed from the printed three-dimensional object to enable continued formation of the three-dimensional object.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: August 27, 2019
    Assignee: Xerox Corporation
    Inventors: Douglas E. Proctor, Timothy J. Clark, Joseph M. Ferrara, Jr.
  • Publication number: 20190248130
    Abstract: Devices include electrically conductive elements contacting a vacuum belt, and a voltage source connected to the electrically conductive elements. The electrically conductive elements form an electrical circuit from the voltage source, through the belt, and back to the voltage source. The electrically conductive elements are positioned so that they are separated from the belt when the belt moves the sheets of media between the electrically conductive elements and the belt. A processor is capable of identifying leading edges of the sheets of media on the belt (when voltage of the electrical circuit changes from a relatively higher voltage to a relatively lower voltage) and identifying trailing edges of the sheets of media on the belt (when the voltage of the electrical circuit changes from the relatively lower voltage back to the relatively higher voltage).
    Type: Application
    Filed: February 14, 2018
    Publication date: August 15, 2019
    Applicant: Xerox Corporation
    Inventors: Aaron M. Moore, Timothy G. Shelhart, Timothy D. Slattery, Joseph M. Ferrara, JR., Carlos M. Terrero, Jacob R. McCarthy, Roberto A. Irizarry