| 摘要 |
An inkjet printer head for performing recording by ejecting ink onto a recording medium, has: a cavity unit including a plurality of nozzle holes for ejecting the ink, a plurality of pressure chambers communicating with each of the nozzle holes, and a manifold that temporarily accumulates the ink that is supplied to the pressure chambers; and actuators that eject the ink from the nozzle holes. The cavity unit contains at least a laminate having a nozzle film made of a synthetic resin and provided with said plurality of nozzle holes, a reinforcement plate stuck onto one face of the nozzle film and arranged facing the recording medium, and a manifold plate stuck onto the other face of the nozzle film and provided with manifold holes constituting the manifold. The reinforcement plate is provided with a through-hole passing therethrough facing each nozzle hole, and a recess that opens facing the manifold holes through the nozzle film.
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