Patents by Inventor John R. Uchal

John R. Uchal 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).

  • APPARATUS AND METHOD FOR REMOVAL OF INK FROM AN EXTERIOR OF A PRINTHEAD
    Publication number: 20130201254
    Abstract: In an inkjet printing apparatus, a heater heats a drib bib that is located below a plurality of inkjets in a printhead to a temperature that melts ink collected on a surface of the drip bib. Pressurized air is directed toward the surface of the drip bib to remove the melted ink from the surface of the drip bib.
    Type: Application
    Filed: February 2, 2012
    Publication date: August 8, 2013
    Applicant: XEROX CORPORATION
    Inventors: James Edward Williams, Roger G. Leighton, Paul A. Hosier, David Peter Lomenzo, David Kenneth Ahl, Scott J. Phillips, John R. Uchal
  • System for ink removal from a printhead assembly
    Patent number: 8434854
    Abstract: A printhead cleaning device includes a housing having an opening and an ink receptacle positioned within the opening. A member extends from the ink receptacle and through the opening. The member is configured to contact a faceplate of a printhead to enable liquid ink emitted onto the faceplate to move from across the member into the ink receptacle.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: May 7, 2013
    Assignee: Xerox Corporation
    Inventors: Robert E. Rosdahl, Jr., Michael Quoc Lu, John R. Uchal, Michael J. Severn
  • SYSTEM FOR INK REMOVAL FROM A PRINTHEAD ASSEMBLY
    Publication number: 20130100203
    Abstract: A printhead cleaning device includes a housing having an opening and an ink receptacle positioned within the opening. A member extends from the ink receptacle and through the opening. The member is configured to contact a faceplate of a printhead to enable liquid ink emitted onto the faceplate to move from across the member into the ink receptacle.
    Type: Application
    Filed: October 19, 2011
    Publication date: April 25, 2013
    Applicant: Xerox Corporation
    Inventors: Robert E. Rosdahl, JR., Michael Quoc Lu, John R. Uchal, Michael J. Severn
  • APPARATUS AND METHOD FOR COLLECTING AND EXPELLING PHASE CHANGE INK IN A PRINTER
    Publication number: 20130050361
    Abstract: An ink removal system includes a drip bib and a flexible member. The drip bib collects melted ink flowing down the face of a printhead and the flexible member captures ink dropping from the drip bib after an ink receptacle has received most of the ink collected by the drip bib. When the ink receptacle returns to the position where the receptacle catches melted ink from the drip bib, the receptacle also bends the flexible member and releases the captured ink, which falls into the ink receptacle.
    Type: Application
    Filed: August 29, 2011
    Publication date: February 28, 2013
    Applicant: XEROX CORPORATION
    Inventors: Laurence S. Barker, Michael Quoc Lu, John R. Uchal
  • METHOD AND SYSTEM FOR DELIVERING SOLID-INK PELLETS
    Publication number: 20130021418
    Abstract: The present disclosure provides apparatus and method for supplying uninterrupted flow of solid-ink pellets to an image-forming device. The apparatus includes a container for retaining solid-ink pellets, and a selectably-inflatable bladder disposed within the container. Further, the apparatus includes a tube communicating the bladder with a pressure supply.
    Type: Application
    Filed: July 18, 2011
    Publication date: January 24, 2013
    Applicant: XEROX CORPORATION
    Inventors: Michael Q. Lu, Robert B. Anderson, JR., John R. Uchal, D. Clay Johnson, Eliud Robles Flores
  • Current monitoring to detect photoreceptor scratches
    Patent number: 8331809
    Abstract: A method monitors an electric current supplied to an electrostatic brush within a printing device. The electrostatic brush contacts and cleans a photoreceptor surface within the printing device. The method records a current spike pattern of when the electric current exceeds a first current threshold during the monitoring; however, the method will stop operations of the printing device if the electric current exceeds a second current threshold that is greater than the first current threshold. Further, the method can determine whether a scratch is present on the photoreceptor surface based on the current spike pattern.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: December 11, 2012
    Assignee: Xerox Corporation
    Inventors: Michael Quoc Lu, Bruce E. Thayer, John R. Uchal
  • CURRENT MONITORING TO DEFECT PHOTORECEPTOR SCRATCHES
    Publication number: 20120008965
    Abstract: A method monitors an electric current supplied to an electrostatic brush within a printing device. The electrostatic brush contacts and cleans a photoreceptor surface within the printing device. The method records a current spike pattern of when the electric current exceeds a first current threshold during the monitoring; however, the method will stop operations of the printing device if the electric current exceeds a second current threshold that is greater than the first current threshold. Further, the method can determine whether a scratch is present on the photoreceptor surface based on the current spike pattern.
    Type: Application
    Filed: July 9, 2010
    Publication date: January 12, 2012
    Applicant: XEROX CORPORATION
    Inventors: Michael Quoc Lu, Bruce E. Thayer, John R. Uchal