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    RECOATER MOVEMENT
    1.
    发明申请
    RECOATER MOVEMENT 有权

    公开(公告)号：US20210197481A1

    公开(公告)日：2021-07-01

    申请号：US16074974

    申请日：2017-04-21

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Brent EWALD ,  Michael EWE ,  Eric COLLINS ,  Wesley R. SCHALK

    IPC: B29C64/393 ,  B29C64/218 ,  B29C64/232 ,  B29C64/236 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

    Abstract: Example systems relate to recoater movement. A non-transitory machine readable medium may contain instructions executable by a processor. The instructions may include instructions to change an action of a recoater in response to a determination that the recoater has reached a first location of a build area comprising build material. Instructions may further include instructions to lift the recoater in response to a determination that the recoater has reached a second location of the build area. Instructions may additionally include instructions to move the recoater over the second location at the lifted position, wherein the second location includes a build-up of the build material.

    INK CARTRIDGE INK AMOUNT CALCULATIONS BASED ON MOTOR CHARACTERISTICS
    2.
    发明公开
    INK CARTRIDGE INK AMOUNT CALCULATIONS BASED ON MOTOR CHARACTERISTICS 审中-公开

    公开(公告)号：US20230373219A1

    公开(公告)日：2023-11-23

    申请号：US18027487

    申请日：2020-09-30

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： Peter BOUCHER ,  Michael EWE

    IPC: B41J2/175

    CPC classification number: B41J2/17566

    Abstract: According to examples, an apparatus may include a processor and a memory on which are stored computer-readable instructions that, when executed by the processor, may cause the processor to access a characteristic of a motor coupled to a carriage in a printer. In this regard, an ink cartridge may be mounted on the carriage and the characteristic may be of the motor during movement by the motor of the carriage. The processor may calculate an amount of ink in the ink cartridge based on the characteristic of the motor and may determine whether the calculated amount of ink differs from an estimated amount of ink in the ink cartridge. In some examples, based on the amount of ink in the ink cartridge differing from the estimated amount of ink in the ink cartridge, the processor may disable the printer and/or generate a notification.

    CONTROLLED COOLING FOR PRINT HEADS
    4.
    发明申请
    CONTROLLED COOLING FOR PRINT HEADS 有权

    公开(公告)号：US20210206102A1

    公开(公告)日：2021-07-08

    申请号：US16075443

    申请日：2017-07-28

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Samuel JEONG ,  Michael EWE

    IPC: B29C64/364 ,  B29C64/209 ,  B33Y30/00

    Abstract: An electronic device includes a carriage to move along an axis relative to a platform. In addition, the electronic device includes a print head disposed within the carriage to move with the carriage and to deliver a print agent to the platform. Further, the electronic device includes a cooling system. The cooling system includes an air source to deliver air to the print head within the carriage to cool the print head. The cooling system also includes a pressure sensor to measure a pressure of a first zone within the carriage. Moreover, the cooling system includes a controller to control a flow rate of the air into the first zone or from the first zone in response to the measured pressure to maintain the first zone at a positive pressure with respect to a second zone outside the carriage.

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