Piezoelectric inkjet printhead
    7.
    发明授权
    Piezoelectric inkjet printhead 失效
    压电喷墨打印头

    公开(公告)号:US08042919B2

    公开(公告)日:2011-10-25

    申请号:US12722664

    申请日:2010-03-12

    IPC分类号: B41J2/045

    CPC分类号: B41J2/14233 B41J2/055

    摘要: A piezoelectric inkjet printhead includes a manifold, a chamber array including a plurality of chambers in connection with the manifold and arranged along at least one side of the manifold, a vibrating plate to cover the plurality of chambers, and a plurality of piezoelectric actuators formed on the vibrating plate to change pressures of corresponding ones of the plurality of chambers by vibrating the vibrating plate. The plurality of chambers includes a plurality of pressure chambers disposed in a center portion of the chamber array and having corresponding ink ejecting nozzles, and at least two dummy chambers, one disposed on each side of the chamber array and having corresponding dummy nozzles that do not eject ink. A plurality of trenches may be formed in the vibrating plate between each of the piezoelectric actuators.

    摘要翻译: 压电喷墨打印头包括歧管,腔室阵列,其包括与歧管连接的多个腔室,并且沿着歧管的至少一侧布置,覆盖多个腔室的振动板,以及形成在 所述振动板通过振动所述振动板来改变所述多个室中相应的室的压力。 多个室包括设置在室阵列的中心部分并具有对应的喷墨喷嘴的多个压力室,以及至少两个虚设室,一个设置在室阵列的每一侧上,并且具有不对应的虚拟喷嘴 弹出墨水。 可以在每个压电致动器之间的振动板中形成多个沟槽。

    Inkjet printhead having piezoelectric actuator and method of driving the piezoelectric actuator
    9.
    发明授权
    Inkjet printhead having piezoelectric actuator and method of driving the piezoelectric actuator 失效
    具有压电致动器的喷墨打印头和驱动压电致动器的方法

    公开(公告)号:US08002391B2

    公开(公告)日:2011-08-23

    申请号:US12755474

    申请日:2010-04-07

    IPC分类号: B41J2/045

    CPC分类号: B41J2/14233

    摘要: An inkjet printhead and a method of driving the inkjet printhead include a flow channel substrate having a pressure chamber, and a piezoelectric actuator formed on the flow channel substrate to apply a driving force to the pressure chamber to eject ink. The piezoelectric actuator includes a piezoelectric layer formed on the flow channel substrate to correspond to the pressure chamber, and a plurality of common electrodes and a plurality of driving electrodes alternately arranged in a length direction of the piezoelectric layer.

    摘要翻译: 喷墨打印头和驱动喷墨打印头的方法包括:具有压力室的流路基板和形成在流路基板上的压电致动器,用于向压力室施加驱动力以喷射油墨。 压电致动器包括形成在流路基板上以对应于压力室的压电层,以及沿压电层的长度方向交替布置的多个公共电极和多个驱动电极。