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).
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Publication number: 20230242372Abstract: 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: ApplicationFiled: January 31, 2022Publication date: August 3, 2023Inventors: Keith Jariabka, John J. Cantrell, Juan D. Ramos
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Publication number: 20220219466Abstract: 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: ApplicationFiled: September 9, 2019Publication date: July 14, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: KOK CHAI CHONG, John J. Cantrell, Suriyaprakash Saravanan, Seng San Koh
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Publication number: 20220134770Abstract: 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: ApplicationFiled: June 13, 2019Publication date: May 5, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Miguel Angel Lopez Alvarez, Jay S. Gondek, John J. Cantrell, Yifeng Wu
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Publication number: 20220129714Abstract: 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: ApplicationFiled: July 18, 2019Publication date: April 28, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Naoto A. Kawamura, Christine E. Steichen, Yifeng Wu, John J. Cantrell, David M. Wetchler
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Patent number: 11305548Abstract: An ink tank includes a cap assembly attached to the ink tank by a preloaded hinge that defines a rotational axis of the cap assembly when the cap assembly is opened and closed. The preloaded hinge biases the cap assembly to an opened position when the cap assembly is unlatched. The cap assembly includes a cap housing, a bung retained within the cap housing, a spring disposed between the cap housing and the bung, a latch to hold the cap assembly in a closed position, where in the closed position the spring applies a force to provide a seal between the bung and the ink tank. The cap assembly also includes an effector that is operative when the cap assembly is unlatched, to sequence a closing of an internal valve of the ink tank and a breaking of the seal between the bung and the ink tank thereafter.Type: GrantFiled: October 20, 2017Date of Patent: April 19, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: John J Cantrell, Keith Jariabka, Theodore J Conley, William S Osborne
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Patent number: 11298944Abstract: An example system includes an ink tank including a feeder tank, wherein the feeder tank is to hold a fluid therein, the feeder tank having a port, the feeder tank being under a negative gauge pressure. The example system further includes a print cartridge in fluid communication with the port of the feeder tank, the print cartridge having a nozzle plate. The port of the feeder tank is positioned to a lower corner of the feeder tank distally to the print cartridge, wherein the nozzle plate is disposed above a predetermined level within the feeder tank when the system is not tilted, the predetermined level corresponding to a free surface of a predetermined volume of the fluid when the system is not tilted. When the system is tilted to position the nozzle plate below the port, the volume of fluid uncovers the port.Type: GrantFiled: January 25, 2018Date of Patent: April 12, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: William S Osborne, John J Cantrell
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Publication number: 20220109770Abstract: 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: ApplicationFiled: March 29, 2019Publication date: April 7, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventor: John J. Cantrell
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Patent number: 11220111Abstract: 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: GrantFiled: October 20, 2017Date of Patent: January 11, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: John J. Cantrell, Keith Jariabka, Theodore J. Conley, William S. Osborne
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Publication number: 20210291536Abstract: 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: ApplicationFiled: October 20, 2017Publication date: September 23, 2021Inventors: John J. Cantrell, Keith Jariabka, Theodore J. Conley, William S. Osborne
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Patent number: 11046102Abstract: 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: GrantFiled: October 20, 2017Date of Patent: June 29, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: John J. Cantrell, Keith Jariabka, Theodore J. Conley, William S. Osbome
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Publication number: 20210070055Abstract: An example system includes an ink tank including a feeder tank, wherein the feeder tank is to hold a fluid therein, the feeder tank having a port, the feeder tank being under a negative gauge pressure. The example system further includes a print cartridge in fluid communication with the port of the feeder tank, the print cartridge having a nozzle plate. The port of the feeder tank is positioned to a lower corner of the feeder tank distally to the print cartridge, wherein the nozzle plate is disposed above a predetermined level within the feeder tank when the system is not tilted, the predetermined level corresponding to a free surface of a predetermined volume of the fluid when the system is not tilted. When the system is tilted to position the nozzle plate below the port, the volume of fluid uncovers the port.Type: ApplicationFiled: January 25, 2018Publication date: March 11, 2021Inventors: William S Osborne, John J Cantrell
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Patent number: 10882324Abstract: 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: GrantFiled: November 2, 2018Date of Patent: January 5, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: John J. Cantrell, Sierra Lila Wolf
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Publication number: 20200338898Abstract: An ink tank includes a cap assembly attached to the ink tank by a preloaded hinge that defines a rotational axis of the cap assembly when the cap assembly is opened and closed. The preloaded hinge biases the cap assembly to an opened position when the cap assembly is unlatched. The cap assembly includes a cap housing, a bung retained within the cap housing, a spring disposed between the cap housing and the bung, a latch to hold the cap assembly in a closed position, where in the closed position the spring applies a force to provide a seal between the bung and the ink tank. The cap assembly also includes an effector that is operative when the cap assembly is unlatched, to sequence a closing of an internal valve of the ink tank and a breaking of the seal between the bung and the ink tank thereafter.Type: ApplicationFiled: October 20, 2017Publication date: October 29, 2020Inventors: John J Cantrell, Keith Jariabka, Theodore J Conley, William S Osborne
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Publication number: 20200238742Abstract: 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: ApplicationFiled: October 20, 2017Publication date: July 30, 2020Inventors: John J. Cantrell, Keith Jariabka, Theodore J. Conley, William S. Osbome
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Publication number: 20200139717Abstract: 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: ApplicationFiled: November 2, 2018Publication date: May 7, 2020Inventors: John J. Cantrell, Sierra Lila Wolf
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Patent number: 10527131Abstract: A selectable drive printing device includes a drive selector system to select between driving a print drive system and driving a scan drive system based at least partially on a position of a selector swing arm of the drive selector system. The selectable drive printing device includes a shifter to selectively shift the drive selector system between a scanning system drive position of the selector swing arm and a printing system drive position of the selector swing arm.Type: GrantFiled: January 21, 2016Date of Patent: January 7, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Eric Berner Strom, John J Cantrell, Robert Lawrence Winburne
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Patent number: 10293626Abstract: A selectable drive printing device includes a feedshaft to selectively drive a print drive system and a scan drive system, and a shifter to selectively shift a drive selector assembly of the selectable drive printing device between a scanning system drive position wherein the scan drive system is driven and a printing system drive position wherein the print drive system is driven. The shifter is coaxially and rotatably coupled around the feedshaft. Further, the shifter selectively drives the print drive system and the scan drive system based on an angular position of the shifter about the feedshaft.Type: GrantFiled: January 15, 2016Date of Patent: May 21, 2019Assignee: Hewlett-Packard Development Company, L.P.Inventors: Eric Berner Strom, John J Cantrell, Alexander David Laws
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Publication number: 20180283500Abstract: A selectable drive printing device includes a drive selector system to select between driving a print drive system and driving a scan drive system based at least partially on a position of a selector swing arm of the drive selector system. The selectable drive printing device includes a shifter to selectively shift the drive selector system between a scanning system drive position of the selector swing arm and a printing system drive position of the selector swing arm.Type: ApplicationFiled: January 21, 2016Publication date: October 4, 2018Inventors: Eric Berner Strom, John J Cantrell, Robert Lawrence Winburne
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Publication number: 20180257414Abstract: A selectable drive printing device includes a feedshaft to selectively drive a print drive system and a scan drive system, and a shifter to selectively shift a drive selector assembly of the selectable drive printing device between a scanning system drive position wherein the scan drive system is driven and a printing system drive position wherein the print drive system is driven. The shifter is coaxially and rotatably coupled around the feedshaft. Further, the shifter selectively drives the print drive system and the scan drive system based on an angular position of the shifter about the feedshaft.Type: ApplicationFiled: January 15, 2016Publication date: September 13, 2018Inventors: Eric Berner Strom, John J Cantrell, Alexander David Laws
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Patent number: 8246145Abstract: 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: GrantFiled: July 14, 2010Date of Patent: August 21, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: Teressa L. Roth, Kok Leong Law, Hai-Lung Hung, Kieran B. Kelly, John J. Cantrell