| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a liquid injection head which enables high precision printing by uniforming liquid injection characteristics, and also enables a cost reduction. SOLUTION: A piezoelectric element 300 consisting of: a lower electrode 60; a piezoelectric body layer 70; and an upper electrode 80, is formed through a vibration plate on one surface side of a flow passage forming substrate 10 where a pressure generating chamber 12 communicating with a nozzle opening 21 to discharge liquid droplets. In forming the element, a driving area of a piezoelectric body active section 320 which is a substantial driving section of each piezoelectric 300, is adjusted according to liquid discharge data of a reference head, so that discharge characteristics of liquid droplets discharged from a plurality of nozzle openings 21. COPYRIGHT: (C)2006,JPO&NCIPI
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