| 摘要 |
<p>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.</p> |
