Liquid discharging method, liquid discharge head and recording apparatus using liquid discharge head

A liquid discharging method comprising the steps of:

• providing a heat generating member for generating thermal energy for generating a bubble in a liquid, a discharge port for discharging the liquid, a flow path communicating with said discharge port and having a bubble generating area for generating the bubble in the liquid, a movable member having a free end and capable of being displaced as the bubble grows, and a regulating portion for regulating a displacement amount of said movable member, said flow path being formed by joining a substantially flat substrate including said heat generating member and said movable member to a top plate opposed to said substrate and including said regulating portion and the liquid being discharged from said discharge port by energy generated by generation of the bubble;
• generating the bubble in the liquid by causing said heat generating member to generate heat and displacing said movable member upon growth of the bubble;
• and
• regulating the displacement of said movable member by said regulating portion when both a volume change ratio of the bubble and a displacement volume change ratio of said movable member tend to increase.