INKJET PRINTHEAD
    1.
    发明公开
    INKJET PRINTHEAD 审中-公开

    公开(公告)号:US20240208213A1

    公开(公告)日:2024-06-27

    申请号:US18391753

    申请日:2023-12-21

    Applicant: ENJET CO. LTD.

    CPC classification number: B41J2/06 B41J2/085 B41J2/14

    Abstract: Disclosed is an inkjet printhead. The inkjet printhead with a plurality of nozzles to eject a liquid solution by an electrohydrodynamic method includes: a first electrode formed for each of the plurality of nozzles and applied with a voltage for ejecting the liquid solution by the electrohydrodynamic method; a first voltage controller configured to apply the voltage to the first electrode; and a second electrode placed between and spaced apart from the first electrodes formed in the nozzles and grounded to inhibit electric field interference between the nozzles.

    INKJET PRINTHEAD AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20230286272A1

    公开(公告)日:2023-09-14

    申请号:US18180541

    申请日:2023-03-08

    Applicant: ENJET CO. LTD.

    CPC classification number: B41J2/14201 B41J2/1623 B41J2/1607 B41J2002/14419

    Abstract: Disclosed are an inkjet printhead and a method of manufacturing the same, the inkjet printhead including: a first layer including an inlet formed to penetrate a substrate and introduce ink therein, and a plurality of membranes; a second layer disposed beneath the first layer, and including a manifold formed to penetrate a substrate and communicate with the inlet or recessed on a top of the substrate, and a plurality of nozzle channels formed to penetrate the substrate below the membrane and allow the ink transferred from the manifold to flow therein; a third layer disposed beneath the second layer, and including a plurality of nozzles formed in a substrate and communicating the plurality of nozzle channels; a piezoelectric actuator formed on the first layer formed with the membrane, and including a lower first electrode, a piezoelectric body on the first electrode, and a second electrode on the piezoelectric body; a first voltage controller configured to oscillate the membrane by applying a pulse voltage to the first electrode and the second electrode; a third electrode disposed beneath the third layer, formed around each nozzle, and surrounded with an insulator; and a second voltage controller configured to discharge droplets of the ink based on induced electric force by applying voltage to the third electrode.

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