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    Flow channel pressure measurement
    2.
    发明授权
    Flow channel pressure measurement 有权

    公开(公告)号：US11104147B2

    公开(公告)日：2021-08-31

    申请号：US16470940

    申请日：2017-04-19

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

    Inventor： David Butinya ,  Marta Coma Vives ,  Albert Crespi Serrano ,  Joan-Albert Miravet Jimenez

    IPC: B41J2/175 ,  G01L7/08 ,  G01L9/00 ,  G01L19/00 ,  B41J2/18

    Abstract: A differential pressure sensor is used for measuring or identifying a pressure difference, for example to determine a movement or speed of fluid in a fluid conduit or printer re-circulation conduit. The differential pressure sensor determines the difference between an air pressure and a fluid pressure, wherein the fluid is moving in a flow channel. The flow channel includes a surface conveying a fluid between a first port and second port. An opening in the surface of the flow channel provides a fluid communication between the differential pressure sensor and fluid. Moreover, the sensor is arranged in air communication with the pressure box, such as to allow the differential pressure sensor to identify the pressure difference between the air pressure in the pressure box and the fluid pressure in the flow channel.

    THERMALLY-INDUCED RECIRCULATION OF PRINTING FLUID
    5.
    发明申请
    THERMALLY-INDUCED RECIRCULATION OF PRINTING FLUID 有权
    印刷液的热诱导再循环

    公开(公告)号：US20160207325A1

    公开(公告)日：2016-07-21

    申请号：US14913534

    申请日：2013-08-27

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

    Inventor： Joan-Albert Miravet Jimenez ,  Alex Andrea Tallada ,  Francisco Lopez Moral

    IPC: B41J2/18

    CPC classification number: B41J2/18 ,  B41J2/17593

    Abstract: A printing fluid delivery system includes a reservoir, a conduit system, and a first heating module. The reservoir may store printing fluid. The conduit system may include a plurality of conduit segments to transport the printing fluid between the reservoir and the printing fluid applicator. The first healing module may selectively heat one conduit segment to increase a temperature of the printing fluid therein to a first temperature which is greater than a second temperature of the printing fluid in an other conduit segment and to thermally induce recirculation of the printing fluid.

    Abstract translation: 印刷液体输送系统包括储存器，导管系统和第一加热模块。 储存器可以存储打印流体。 导管系统可以包括多个导管段，以在储存器和印刷液体施加器之间输送印刷流体。 第一愈合模块可以选择性地加热一个导管段以将其中的印刷流体的温度增加到大于另一导管段中的印刷液体的第二温度的第一温度，并且热诱导印刷液体的再循环。

    RECIRCULATION OF A FLUID IN A PRINTER
    7.
    发明申请
    RECIRCULATION OF A FLUID IN A PRINTER 审中-公开

    公开(公告)号：US20200079099A1

    公开(公告)日：2020-03-12

    申请号：US16469575

    申请日：2017-04-21

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

    Inventor： David Butinya ,  Albert Crespi Serrano ,  Joan-Albert Miravet Jimenez

    IPC: B41J2/175 ,  B41J2/18

    Abstract: In an example, a printer controller is coupled to a fluid pump, a primer pump, and a pressure sensor of a printer, wherein a flow channel provides a fluid communication between the fluid pump and the printhead for enabling fluid recirculation in the printer. The printer controller: activates the fluid pump; activates the primer pump for a first predefined time interval; and identifies or determines a movement of fluid in the flow channel based on the fluid pressure measured by the pressure sensor.

    Selectively Provide Pressure Differences Between Reservoirs To Cause Printing Fluid Movement
    9.
    发明申请
    Selectively Provide Pressure Differences Between Reservoirs To Cause Printing Fluid Movement 有权
    选择性地提供储层之间的压力差，以使印刷液体运动

    公开(公告)号：US20160207317A1

    公开(公告)日：2016-07-21

    申请号：US14915076

    申请日：2013-08-27

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

    Inventor： Joan-Albert Miravet Jimenez ,  Marina Ferran Farres ,  Francesc Ros Cerro

    IPC: B41J2/175

    CPC classification number: B41J2/175 ,  B41J2/17556 ,  B41J2/17596 ,  B41J2/18 ,  B41J2202/12

    Abstract: A printing apparatus, a printing system and a method are disclosed. The method of moving printing fluid within a printing apparatus includes selectively providing a first pressure difference between a first reservoir and a second reservoir by a differential pressure system to cause the printing fluid to move from the first reservoir through a printing fluid applicator to the second reservoir. The method also includes selectively providing a second pressure difference between the first reservoir and the second reservoir by the different pressure system to cause the printing fluid to move from the second reservoir through the printing fluid applicator to the first reservoir.

    Abstract translation: 公开了一种打印装置，打印系统和方法。 在打印设备内移动打印流体的方法包括通过差压系统选择性地在第一储存器和第二储存器之间提供第一压力差，以使打印流体从第一储存器移动到打印流体施加器到第二储存器 。 该方法还包括通过不同的压力系统选择性地在第一储存器和第二储存器之间提供第二压差，以使打印流体从第二储存器通过印刷流体施加器移动到第一储存器。

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