Patents by Inventor John J. Cantrell

John J. Cantrell 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: 11981534
    Abstract: In some examples, the disclosure describes a device that includes a first media tray positioned at a media input of a pick and separation mechanism, a second media tray positioned at the media input of the pick and separation mechanism, a media scan guide to position a sheet of print media at the media input of the pick and separation mechanism, a shared media path comprising a turn roller to receive the sheet of print media from the pick and separation mechanism from a first direction and provide the sheet of print media to a print zone in a second direction, and an output zone to receive the sheet of print media from the shared media path.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: May 14, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Keith Jariabka, John J. Cantrell, Juan D. Ramos
  • Publication number: 20230242372
    Abstract: In some examples, the disclosure describes a device that includes a first media tray positioned at a media input of a pick and separation mechanism, a second media tray positioned at the media input of the pick and separation mechanism, a media scan guide to position a sheet of print media at the media input of the pick and separation mechanism, a shared media path comprising a turn roller to receive the sheet of print media from the pick and separation mechanism from a first direction and provide the sheet of print media to a print zone in a second direction, and an output zone to receive the sheet of print media from the shared media path.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 3, 2023
    Inventors: Keith Jariabka, John J. Cantrell, Juan D. Ramos
  • Publication number: 20220219466
    Abstract: A media sheet is manually inserted at a duplex reversal point of a duplex printing path of the printing device. The media sheet is advanced through the duplex printing path. As the media sheet advances through the duplex printing path, the media sheet is printed on, and the printed media sheet output from the printing device.
    Type: Application
    Filed: September 9, 2019
    Publication date: July 14, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: KOK CHAI CHONG, John J. Cantrell, Suriyaprakash Saravanan, Seng San Koh
  • Publication number: 20220134770
    Abstract: An example system for thermal energy determination can include a first controller comprising a processor and a non-transitory machine-readable medium (MRM) communicatively coupled to the processor. The non-transitory MRM can include instructions executable by the processor to cause the processor to receive relative humidity information of an environment of a thermal printing device, determine a colormap to a print media of the thermal printing device based on the relative humidity, and determine a particular thermal energy to apply to the print media based on the determined colormap.
    Type: Application
    Filed: June 13, 2019
    Publication date: May 5, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Miguel Angel Lopez Alvarez, Jay S. Gondek, John J. Cantrell, Yifeng Wu
  • Publication number: 20220129714
    Abstract: Examples of printing device calibration based on a lot code are described. In an example, a lot code of a print media is determined. Calibration parameters for a printing device are determined based on the lot code. The printing device is calibrated to print on the print media based on the calibration parameters.
    Type: Application
    Filed: July 18, 2019
    Publication date: April 28, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Naoto A. Kawamura, Christine E. Steichen, Yifeng Wu, John J. Cantrell, David M. Wetchler
  • Publication number: 20220109770
    Abstract: An example marking device may include a sensing device, a media conveyance component, and a controller. The sensing device may be arranged in a media path to sense data encoded on media. The media conveyance component may feed a medium into the media path and advance the medium a first distance less than a length of the medium. And the controller may receive timing signals indicative of read timing markings from the sensing device, receive data signals indicative of media characteristic markings from the sensing device, and alter marking parameters of the marking device based on the to be received data signals.
    Type: Application
    Filed: March 29, 2019
    Publication date: April 7, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventor: John J. Cantrell
  • Patent number: 11220111
    Abstract: An example ink tank includes a cap with a preloaded hinge that biases the cap to a fully opened position when the cap is unlatched. The cap in the fully opened position interferes with and prevents the closure of a door that provides access to the ink tank. The door includes a sensor that locks out the print function when the door is open, effecting a printer lockout when the cap of the ink tank is opened for filling.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: January 11, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John J. Cantrell, Keith Jariabka, Theodore J. Conley, William S. Osborne
  • Publication number: 20210291536
    Abstract: An example ink tank includes a cap with a preloaded hinge that biases the cap to a fully opened position when the cap is unlatched. The cap in the fully opened position interferes with and prevents the closure of a door that provides access to the ink tank. The door includes a sensor that locks out the print function when the door is open, effecting a printer lockout when the cap of the ink tank is opened for filling.
    Type: Application
    Filed: October 20, 2017
    Publication date: September 23, 2021
    Inventors: John J. Cantrell, Keith Jariabka, Theodore J. Conley, William S. Osborne
  • Patent number: 11046102
    Abstract: An example ink tank includes an ink tank and a cap assembly attached to the ink tank with a preloaded hinge. The hinge rotates the cap assembly from a closed position to an open position when the cap assembly is unlatched. The cap assembly includes a bung to seal the ink tank during a partial rotation of the cap assembly when the cap assembly is unlatched. The ink tank also includes spring-loaded linkage connected to a valve in the ink tank. An effector extending from the cap assembly engages the spring-loaded linkage when the cap assembly is latched and disengages from the spring-loaded linkage after the cap assembly is unlatched. The spring-loaded linkage opens the valve when engaged with the effector, and closes the valve when disengaged from the effector, while the bung maintains a tank seal until the internal valve is closed.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 29, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John J. Cantrell, Keith Jariabka, Theodore J. Conley, William S. Osbome
  • Patent number: 10882324
    Abstract: Example implementations relate to printer valve seals. In some examples, a printer valve to receive print substance from a fluid conduit and transmit the received print substance to a print cartridge can include a valve neck having a first seal member to provide a seal between the valve neck and an inlet of the print cartridge, and an actuator having a second seal member to form a seal within a valve body of the printer valve while the valve neck is detached from the inlet of the print cartridge.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: January 5, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John J. Cantrell, Sierra Lila Wolf
  • Publication number: 20200238742
    Abstract: An example ink tank includes an ink tank and a cap assembly attached to the ink tank with a preloaded hinge. The hinge rotates the cap assembly from a closed position to an open position when the cap assembly is unlatched. The cap assembly includes a bung to seal the ink tank during a partial rotation of the cap assembly when the cap assembly is unlatched. The ink tank also includes spring-loaded linkage connected to a valve in the ink tank. An effector extending from the cap assembly engages the spring-loaded linkage when the cap assembly is latched and disengages from the spring-loaded linkage after the cap assembly is unlatched. The spring-loaded linkage opens the valve when engaged with the effector, and closes the valve when disengaged from the effector, while the bung maintains a tank seal until the internal valve is closed.
    Type: Application
    Filed: October 20, 2017
    Publication date: July 30, 2020
    Inventors: John J. Cantrell, Keith Jariabka, Theodore J. Conley, William S. Osbome
  • Publication number: 20200139717
    Abstract: Example implementations relate to printer valve seals. In some examples, a printer valve to receive print substance from a fluid conduit and transmit the received print substance to a print cartridge can include a valve neck having a first seal member to provide a seal between the valve neck and an inlet of the print cartridge, and an actuator having a second seal member to form a seal within a valve body of the printer valve while the valve neck is detached from the inlet of the print cartridge.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 7, 2020
    Inventors: John J. Cantrell, Sierra Lila Wolf
  • Patent number: 8246145
    Abstract: An apparatus for use as part of an inkjet printer to clear an ink drop stalagmite in the printer. In one embodiment the apparatus includes a clearing device coupled to an access door of the inkjet printer, wherein upon operation of the access door the clearing device at least partially clears the ink drop stalagmite.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: August 21, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Teressa L. Roth, Kok Leong Law, Hai-Lung Hung, Kieran B. Kelly, John J. Cantrell
  • Publication number: 20120013679
    Abstract: An apparatus for use as part of an inkjet printer to clear an ink drop stalagmite in the printer. In one embodiment the apparatus includes a clearing device coupled to an access door of the inkjet printer, wherein upon operation of the access door the clearing device at least partially clears the ink drop stalagmite.
    Type: Application
    Filed: July 14, 2010
    Publication date: January 19, 2012
    Inventors: Teressa L. ROTH, Kok Leong Law, Hai-Lung Hung, Kieran B. Kelly, John J. Cantrell
  • Patent number: 7645006
    Abstract: Various embodiments and methods relating to lifting a printhead are disclosed.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: January 12, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Wesley R. Schalk, Allan G. Olson, Ezra Szoke, John J. Cantrell
  • Publication number: 20080024530
    Abstract: Various embodiments and methods relating to lifting a printhead are disclosed.
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventors: Wesley R. Schalk, Allan G. Olson, Ezra Szoke, John J. Cantrell