Patent ID: 6435669
Filing Date: 2002-08-20
Classification: B41J

Abstract:
A liquid ejecting head for ejecting liquid with generation of a bubble, comprising:a heat generating element for generating heat to form the bubble in a liquid flow path communicating with an ejecting outlet for ejecting liquid, said heat generating element including a resistance layer and a pair of electrodes connected to said resistance layer; and a movable member having a fulcrum and a free end located downstream of said fulcrum relative to a liquid flow direction in said liquid flow path, said movable member being disposed facing said heat generating element with a space between said movable member and said heat generating element, said movable member being movable by pressure produced by generation of the bubble from a first position to a second position that is further from said heat generating element than the first position, wherein said movable member covers at least a whole area of an upstream half of said heat generating element relative to the liquid flow direction, wherein said liquid flow path has a supply passage for supplying the liquid to said heat generating element from upstream thereof along the heat generating element, and wherein said liquid flow path has an internal wall which is substantially flat or smoothly curved, and the liquid is supplied to said heat generating element along the internal wall.