Patent ID: 6945635
Filing Date: 2005-09-20
Classification: B41J

Abstract:
1. A liquid discharge head comprising: a plurality of discharge ports for discharging liquid; a plurality of liquid flow paths which are in communication with respective ones of said discharge ports, each having a bubble generating area for creating a bubble in the liquid; bubble generating means provided for each of said liquid flow paths for generating energy to create and grow the respective bubbles; a plurality of liquid supply ports arranged for respective ones of said liquid flow paths to be in communication with a common liquid supply chamber; and at least one movable member supported with a minute gap of 10 μm or less to one of said liquid supply ports on the liquid flow path side, and provided with a free end, an area of said movable member surrounded at least by an edge of the free end and both sides of the movable member continued therefrom being made larger than an opening area of said liquid supply port facing the liquid flow path, and said discharge ports being in a linearly communicative state with respective ones of said bubble generating means.