| 摘要 |
An ink jet printer head including a cavity unit having a plurality of ink ejection nozzles. The cavity unit and an actuator are stacked on each other. The cavity unit is constituted by a plurality of sheet members which are stacked on each other. A spacer sheet is provided which is interposed between a base sheet and at least one manifold sheet. The spacer sheet is more rigid than each of sheet members other than at least one spacer sheet. The spacer sheet has a thickness of from about 800 mum to about 500 mum and each of at least the base sheet and the manifold sheet has a thickness of about 50 mum and about 150 mum.
|
