| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric head which can enlarge a displacement amount at a low cost, can respond to high speed driving and further contribute to miniaturization, and to provide an ink liquid ejector and an inkjet recorder. SOLUTION: An upper electrode 113 of the center among three upper electrodes 113 dividedly formed on a piezoelectric element 112 formed on one surface of a diaphragm 110 of a piezoelectric actuator 140 which constitutes the piezoelectric head 100 is made an individual electrode, and electrodes of both sides are made common electrodes used in common to all piezoelectric actuators 140 which constitute the piezoelectric head 100. A common potential is applied to the common electrodes, and an individual potential controlled independently of the common potential and of the same size as that of the common potential is applied to the individual electrode. COPYRIGHT: (C)2010,JPO&INPIT |
