Patent ID: 6533401
Filing Date: 2003-03-18
Classification: B41J

Abstract:
A liquid discharging method through a liquid discharge head comprising:a liquid flow path having a bubble generating area, in which a bubble is generated from liquid, a heater for generating heat energy to generate and grow said bubble, a discharge port which communicates with said liquid flow path and is a portion for discharging the liquid, a movable member provided in said bubble generating area, having a free end which shifts along with the growth of said bubble, and a liquid flow regulating portion for regulating a liquid flow in a direction opposite to said discharge port during a displacement process of said movable member and growth of said bubble, wherein said liquid flow regulating portion is located closer to a discharge port side of said liquid flow path than said free end of said movable member, wherein said liquid flow regulating portion hides said free end of said movable member in said displacement process, such that the liquid flow is regulated, and wherein said liquid flow regulating portion is kept at such a distance from said free end as not to bring it into contact with said free end, said method comprising a step of: forming in said liquid flow path having said bubble generating area a space which is substantially closed except for said discharge port, by bringing said free end of said movable member, in the displacement process, close to said liquid flow regulating portion without having said free end and said liquid flow regulating portion substantially contact each other.