| 摘要 |
PROBLEM TO BE SOLVED: To facilitate manufacture of nozzle while reducing the diameter and increasing the density thereof by forming pressure chambers and nozzles integrally in a channel plate. SOLUTION: A channel plate 41 of ink jet print head 40 is made by forming nozzles 41F and pressure chambers 41C integrally on one side of a glass plate by powder beam machining. A print head 40 is manufactured by pasting a piezoelectric actuator 42 comprising a diaphragm 43 and piezoelectric actuators 44, while positioning, onto one side 41A of the channel plate 41. According to the method, highly accurate positioning work of the nozzle plate and the channel plate can be eliminated and clogging of the nozzle 41F due to leakage of adhesive can be prevented. Furthermore, the pressure chambers 41C and the nozzle 41F can be formed finely and precisely without causing fluctuation in the width, length or depth of the channel plate 41. This method can deal sufficiently with formation of small diameter high density nozzles while facilitating manufacture.
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