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    • 7. 发明授权
    • Piezoelectric inkjet printhead
    • 压电喷墨打印头
    • US08042919B2
    • 2011-10-25
    • US12722664
    • 2010-03-12
    • Seung-mo LimTae-kyung LeeChang-youl MoonJae-woo ChungHwa-sun Lee
    • Seung-mo LimTae-kyung LeeChang-youl MoonJae-woo ChungHwa-sun Lee
    • B41J2/045
    • B41J2/14233B41J2/055
    • 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.
    • 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。