Patent ID: 8613499
Filing Date: 2013-12-24
Classification: B41J,Y10T

Abstract:
1. An inkjet head comprising: a nozzle plate comprising nozzles; a piezoelectric member which comprises pressure chambers each associated with one of the nozzles, sidewalls which pressurize the pressure chambers, electrodes formed on the sidewalls, and electrode wiring lines each connected to one of the electrodes and each provided on one of the pressure chambers, the electrode wiring lines being alternately provided on the pressure chambers such that every other electrode wiring line is provided on a first side of the pressure chambers and every other remaining electrode wiring line is provided on a second side of the pressure chambers which is different from the first side of the pressure chambers, the pressure chambers being pressurized by applying a drive pulse voltage to the sidewalls from the electrodes, thereby discharging a liquid from the nozzles; a substrate to which the piezoelectric member is bonded; a frame member which is bonded to the substrate and the nozzle plate and surrounds the piezoelectric member to form a liquid chamber from which liquid is supplied to the pressure chambers; and a wiring circuit which is provided on the substrate and comprises wiring lines connected with the electrode wiring lines, respectively, wherein, in the wiring circuit, every other wiring line is arranged on the substrate extending across an area where the piezoelectric member is bonded to the substrate, and the wiring lines that extend across the area where the piezoelectric member is bonded are connected to the every other electrode wiring lines that are provided on the first side of the pressure chambers, and wherein the piezoelectric member, the nozzle plate, the substrate, and the frame member constitute a roof-shooter type configuration.