| 摘要 |
PROBLEM TO BE SOLVED: To prevent a liquid drop speed from increasing only at an end nozzle in relation to a structure of an on-demand type multi nozzle ink jet head using a piezoelectric element with a plurality of nozzles integrated with high density. SOLUTION: A center line of a pressure chamber is shifted from a center line of an island for the end nozzle among an array of nozzles disposed opposite to pressure chambers arranged in an array.
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