METHOD OF MANUFACTURING LIQUID INJECTION HEAD, AND METHOD OF MANUFACTURING LIQUID INJECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a liquid injection head capable of improving discharge stability and yield.

SOLUTION: The liquid injection head 10 includes: pressure chambers 21 each communicated with a nozzle opening; manifold plates 33 in which manifolds 32 supplying liquid to the plurality of pressure chambers 21 are formed; and a pressure generating member changing the pressure of the liquid within the pressure chambers 21. The manifolds 32 are formed by laminating a first manifold plate 33A and a second manifold plate 33B. The method of manufacturing the liquid injection head 10 includes: a process of forming the plurality of first manifold plates 33A on a first manifold forming base plate; a process of forming the plurality of second manifold plates 33B on a second manifold forming base plate; and a process of joining the first manifold plate 33A and the second manifold plate 33B cut from the same position of the first manifold forming base plate and the second manifold forming base plate to each other.

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