| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric inkjet head which can improve variation of vibration characteristics of a driving region corresponding to each pressurization chamber of a piezoelectric element formed integrally in a size to cover a plurality of the pressurization chambers, or vibration characteristics of piezoelectric elements formed separately for each of a plurality of pressurization chambers more surely than in the case of a conventional one. SOLUTION: A contact 10b for electrical connection to a discrete electrode 10 which impresses a driving voltage to each driving region of the piezoelectric element 9 or to each separate piezoelectric element is set at a solid region where no hollow part such as the pressurization chamber 2, a nozzle part 3, a nozzle passage 4, a supply port 5 or a common feeding passage 6 of a substrate 1 is formed. COPYRIGHT: (C)2005,JPO&NCIPI
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