LIQUID INJECTION HEAD AND LIQUID INJECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a liquid injection head capable of controlling flow passage characteristics of pressure chambers with a simple configuration.SOLUTION: A liquid injection head comprises: a pressure chamber substrate where a plurality of spaces to be pressure chambers in a Y direction is formed in an X direction; a diaphragm 36 being laminated on the pressure chamber substrate and sealing the plurality of spaces; and a piezoelectric element and a support section 52 laminated on the diaphragm 36 at an opposite side to the pressure chamber substrate. Each first space S1 and each second spaces S2 out of the plurality of spaces have positions of one ends different from each other in the Y direction. The support section 52 is formed so as to overlap with at least one end side portions in the first spaces S1 in a plan view and suppresses vibration of the diaphragm 36.SELECTED DRAWING: Figure 7