Patent ID: 8628175

Claim:
An inkjet head, comprising: a plurality of nozzles through which ink is dischargeable out of the inkjet head; a pressure chamber plate that is a single plate made of metal; a plurality of pressure chambers that are groove portions formed in the pressure chamber plate for applying to the ink a pressure that is necessary in order to discharge the ink from the plurality of nozzles, a depth of each of the plurality of pressure chambers being less than a thickness of the pressure chamber plate; an actuator that faces a first face of the pressure chamber plate and that includes a plurality of pressure generating portions, each of the plurality of pressure generating portions being adapted to impart a pressure to a corresponding one of the plurality of pressure chambers; and a pressure chamber support member that supports the pressure chamber plate from a second face of the pressure chamber plate, the second face being an opposite face to the first face, and that is made from a material that has a Young's modulus that is greater than a Young's modulus of a material from which the pressure chamber plate is made.