| 摘要 |
PROBLEM TO BE SOLVED: To reduce the bad influence on the performance of liquid droplet discharge which is caused by the unevenness of the wire length from a wiring drive circuit. SOLUTION: In an inkjet printer 1, a piezoelectric actuator is arranged on the top face of a flow path unit, and one end of a flexible wiring material 40 is arranged on the top face, and the other end is pulled out outside, and then a driver IC 102 is arranged at the pulled-out side. The piezoelectric actuator has two or more activated parts corresponding to two or more nozzles formed in the flow path unit and an individual surface electrode for applying a voltage to two or more activated parts on the utmost top face. Two or more wiring patterns 79a of the flexible wiring material 40 are taken around from the driver IC 102 up to a terminal electrode corresponding to each individual surface electrode and extended to the end of the side opposite to the driver IC 102, and the wire length from the driver IC 102 is almost the same. COPYRIGHT: (C)2009,JPO&INPIT
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