| 摘要 |
An ink jet head including a diaphragm, cavity plate, piezoelectric element, a nozzle plate and a base plate. The adhesive layer for bonding the diaphragm to the cavity plate is formed by an adhesive agent which develops glass transition at a head temperature. The adhesive layers for bonding the piezoelectric element to the diaphragm, the cavity plate to the nozzle plate, and the piezoelectric element to the base plate are each formed by an adhesive agent which does not develop glass transition at the head temperature.
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