| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a constitution which uniformizes ejection characteristics by uniformly transmitting an applied force when an actuator 21 is bonded to a passage unit 4, in terms of an inkjet head 1 with the passage unit 4 and the actuator 21. <P>SOLUTION: A plurality of pressure chambers 10 are formed in the passage unit 4 while adjoining one another along a surface of the passage unit 4. The actuator 21, which is bonded to the passage unit 4 so as to change the capacity of the pressure chamber 10, includes at least piezoelectric sheet 41 which is sandwiched between common electrodes 34a and 34b with a fixed potential and a plurality of individual electrodes 35 arranged in positions corresponding to the respective pressure chambers 10. The individual electrode 35 is connected to a feeder via a land part 36 which is formed on the surface of the actuator 21 in the position of one end of the pressure chamber 10. Additionally, a metallic member 37, which is not electrically connected to the individual electrode 35, is arranged in the opposite position of the land part 36 with the center of the pressure chamber 10 in between. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
