| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable high temperature ink jet print head in which variation in ink ejection characteristics is reduced. SOLUTION: A heater comprising a first temperature sensor is disposed in a housing provided with a common ink channel for supplying ink to a restrictor, a heater comprising a second temperature sensor is provided on a multilayer piezoelectric element fixing plate for generating a pressure variation in a pressure chamber by applying an electric signal, and a section for controlling the temperature of respective heaters is provided. COPYRIGHT: (C)2003,JPO
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