Patent ID: 8944571
Filing Date: 2015-02-03
Classification: B41J,Y10T

Abstract:
1. A liquid jet head comprising: an actuator substrate partitioned by elongated walls of a piezoelectric body, the actuator substrate having elongated ejection grooves and elongated non-ejection grooves separated from one another by the walls and alternately arrayed on the actuator substrate so as to penetrate the actuator substrate from an upper surface through a lower surface thereof, wherein the non-ejection grooves extend from the vicinity of a first-side peripheral end of the actuator substrate positioned at a first side of the liquid jet head up to a second-side peripheral end thereof positioned at a second side of the liquid jet head, and the actuator substrate has raised bottom portions that define the bottoms of the non-ejection grooves near the second-side peripheral end of the actuator substrate.