| 摘要 |
PROBLEM TO BE SOLVED: To prevent a distortion of a head caused by a deflection distortion of a vibration plate when ink is ejected. SOLUTION: A plurality of piezoelectric actuators 20 having an upper electrode, a piezoelectric film, a lower electrode and the vibration plates laminated thereon are provided. The piezoelectric actuators 20 are arranged in a sub- scanning direction (Y direction) and form the actuator rows L1-L4. Each of piezoelectric actuators 20a, 20a belonging to the same actuator row L1 is arranged in parallel to each other. Each of piezoelectric actuators 20a, 20b belonging to the adjacent actuator rows L1, L2, is arranged in non-parallel to each other.
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