Patent ID: 9221254
Filing Date: 2015-12-29
Classification: B41J,Y10T

Abstract:
1. A liquid jet head comprising: a piezoelectric substrate having opposite side surfaces and having first and second groove rows each comprised of elongated ejection grooves and elongated non-ejection grooves alternately arranged in a reference direction, the first and second groove rows being arranged next to each other in the longitudinal direction of the grooves so that grooves in the first groove row are longitudinally displaced relative to grooves in the second groove row, the grooves having opposite first and second ends, and the first ends of the grooves being located closer than the second ends to one side surface of the piezoelectric plate and the second ends of the grooves being located closer than the first ends to the other side surface of the piezoelectric plate, wherein end portions of the second ends of ejection grooves in the first groove row and end portions of the first ends of non-ejection grooves in the second groove row are separated from each other, and overlap each other in a thickness direction of the piezoelectric substrate.