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    • 1. 发明申请
    • LIQUID DISCHARGE METHOD AND LIQUID DISCHARGE HEAD
    • 液体排放方法和液体排放头
    • WO2008026447A1
    • 2008-03-06
    • PCT/JP2007/065880
    • 2007-08-08
    • CANON KABUSHIKI KAISHAINOUE, TakashiTAMURA, Yasuyuki
    • INOUE, TakashiTAMURA, Yasuyuki
    • B41J2/14
    • B41J2/14137B41J2002/14169B41J2002/1437
    • A liquid discharge method allowing a liquid inside a flow path to be heated by a heat generating element (2), thereby to generate a bubble by using a liquid discharge head including an orifice plate (4) having a discharge port (5), heat generating elements symmetrically disposed on the surface opposite to the liquid discharge surface of the orifice plate with the discharge port as a center, and the flow path communicating with the discharge port, and allowing liquid discharged from the discharge port by a volume change accompanied with a generation of bubble, wherein bubble is allowed to advance into the discharge port, and a top end of bubble is allowed to reach at least up to liquid discharge surface (8) of the orifice plate, and a columnar liquid inside the discharge port sandwiched between bubbles is separated by a contraction force caused by a surface tension toward the center of the discharge port.
    • 一种允许流路内的液体被发热元件(2)加热的液体排出方法,从而通过使用包括具有排出口(5)的孔板(4)的液体排出头产生气泡,加热 发生元件,对称地设置在与排出口为中心的孔板的液体排出面相反的表面上,并且与排出口连通的流路,并且允许从排出口排出的液体伴随着 产生气泡,其中允许气泡进入排出口,并且允许气泡顶端至少达到孔板的液体排出表面(8),并且排出口内部的柱状液体夹在 气泡被表面张力引起的朝向排出口的中心的收缩力分离。