Patent ID: 7798614

Claim:
An inkjet head comprising: a flow-path unit comprising: a common ink chamber; and a plurality of individual ink flow paths each of which extends from the common ink chamber to a nozzle through a pressure chamber; a reservoir unit that reserves ink to be fed to the common ink chamber; an actuator unit that varies a volume of the pressure chambers; and a flexible printed circuit that is electrically connected to the actuator unit and a driver IC, wherein the actuator unit comprises: a plurality of first electrodes arranged to correspond to the plurality of pressure chambers, respectively, the first electrodes fed selectively with respective drive voltages for varying the volume of the pressure chambers; and a second electrode kept at a reference potential, one of the flow-path unit and the reservoir unit comprises a first metal portion, the other of the flow-path unit and the reservoir unit comprises a second metal portion, the metal portion of the flow-path unit and the second electrode of the actuator unit are electrically connected with each other, the first metal portion comprises a first metal plate joined to the second metal portion through an insulating material layer, and an electric connection portion, which is in direct contact with the second metal portion, is a bent portion of the first metal plate which is bent toward the second metal portion, wherein two slits are formed on both sides of the bent portion, respectively.