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    Printhead with printer fluid check valve
    5.
    发明授权
    Printhead with printer fluid check valve 有权

    公开(公告)号：US10828892B2

    公开(公告)日：2020-11-10

    申请号：US15547116

    申请日：2015-04-27

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

    Inventor： Rio Rivas ,  Lawrence H White ,  Ed Friesen ,  Erik D Torniainen

    IPC: B41J2/14 ,  B41J2/16

    Abstract: In some examples, a printhead can include a main printer fluid line, a firing chamber in fluid communication with the main printer fluid line to receive printer fluid from the main printer fluid line, and a resistor positioned in the firing chamber. The resistor can, for example, receive an electronic current to cause the resistor to heat up and eject printer fluid droplets from the printhead. The printhead can further include a photolithographically fabricated check valve positioned in the firing chamber. The check valve can, for example, be openable to allow filling of the firing chamber with printer fluid and closeable to at least partially seal the main printer fluid line from printer fluid blowback caused by the resistor.

    Fluid ejection device with ink feedhole bridge
    6.
    发明授权
    Fluid ejection device with ink feedhole bridge 有权

    公开(公告)号：US10086612B2

    公开(公告)日：2018-10-02

    申请号：US15697790

    申请日：2017-09-07

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

    Inventor： Rio Rivas ,  Anthony M. Fuller ,  Ed Friesen

    IPC: B41J2/14

    Abstract: In an embodiment, a fluid ejection device includes a substrate with a fluid slot formed therein, a chamber layer formed on the substrate defining fluid chambers on both sides of the fluid slot, a thin-film layer between the substrate and chamber layer that defines an ink feedhole (IFH) between the fluid slot and the chamber layer, and a chamber layer extension that forms a bridge across the IFH between two chambers.

    FLUID EJECTION DEVICE WITH PARTICLE TOLERANT THIN-FILM EXTENSION
    9.
    发明申请
    FLUID EJECTION DEVICE WITH PARTICLE TOLERANT THIN-FILM EXTENSION 有权
    具有颗粒稳定薄膜延伸的流体喷射装置

    公开(公告)号：US20150124024A1

    公开(公告)日：2015-05-07

    申请号：US14397151

    申请日：2012-07-24

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

    Inventor： Rio Rivas ,  Ed Friesen ,  Kellie Susanne Jensen

    IPC: B41J2/14

    CPC classification number: B41J2/14427 ,  B41J2/1404 ,  B41J2/14201 ,  B41J2/1433 ,  B41J2002/14403 ,  B41J2002/14467

    Abstract: In an embodiment, a fluid ejection device includes a thin-film layer formed over a substrate, a chamber layer formed over the thin-film layer, the chamber layer defining a fluidic channel that leads to a firing chamber, a slot extending through the substrate and into the chamber layer through an ink feed hole in the thin-film layer, and a particle tolerant thin-film extension of the thin-film layer that protrudes into the slot from between the substrate and the chamber layer.

    Abstract translation: 在一个实施例中，流体喷射装置包括在衬底上形成的薄膜层，形成在薄膜层上的室层，室层限定通向烧制室的流体通道，延伸穿过衬底的槽 并通过薄膜层中的供墨孔进入腔室层，以及从衬底和室层之间突出到槽中的薄膜层的耐粒子薄膜延伸。

    PRINTHEAD WITH PRINTER FLUID CHECK VALVE
    10.
    发明申请
    PRINTHEAD WITH PRINTER FLUID CHECK VALVE 有权

    公开(公告)号：US20210046757A1

    公开(公告)日：2021-02-18

    申请号：US17070431

    申请日：2020-10-14

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

    Inventor： Rio Rivas ,  Lawrence H. White ,  Ed Friesen ,  Erik D. Torniainen

    IPC: B41J2/14 ,  B41J2/16

    Abstract: In some examples, a printhead can include a main printer fluid line, a firing chamber in fluid communication with the main printer fluid line to receive printer fluid from the main printer fluid line, and a resistor positioned in the firing chamber. The resistor can, for example, receive an electronic current to cause the resistor to heat up and eject printer fluid droplets from the printhead. The printhead can further include a photolithographically fabricated check valve positioned in the firing chamber. The check valve can, for example, be openable to allow filling of the firing chamber with printer fluid and closeable to at least partially seal the main printer fluid line from printer fluid blowback caused by the resistor.

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