Patent ID: 6773092
Filing Date: 2004-08-10
Classification: B41J

Abstract:
A liquid discharging head comprising a discharge opening for discharging a liquid, a bubble generation region for generating a bubble by applying heat to the liquid by a heat generating member, and a movable member so positioned as to face said bubble generation region and arranged as displaceable between a first position and a second position more distant from said bubble generation region than the first position, said movable member being displaced from said first position to said second position by pressure based on generation of the bubble in said bubble generation region, thereby discharging the liquid,wherein in the heat generating member there exists a bubbling region involved in the generation of the bubble, a center of a width of the heat generating member and a center of a width of an effective bubbling region with respect to a flow direction of the liquid are identical, and conditions of the bubble generation region are given as follows: the width of the effective bubbling region&lE;a width of the bubble generation region