Patent ID: 7976133

Claim:
A liquid-jetting apparatus comprising: a plurality of liquid flow passages which include a plurality of nozzles for jetting a liquid and a plurality of pressure chambers communicating with the plurality of nozzles respectively; an actuator which selectively changes volumes of the plurality of pressure chambers, wherein: the liquid flow passages are formed by a plurality of stacked plates, the actuator is arranged between a pressure chamber plate which is included in the plurality of plates and which forms the plurality of pressure chambers and a nozzle plate which has an insulating property at least on a surface opposed to the pressure chamber plate and which is formed with the nozzles, and the actuator includes a vibration plate which covers the plurality of pressure chambers, a piezoelectric layer which is provided on a surface of the vibration plate disposed on a side not facing the plurality of pressure chambers, and a plurality of individual electrodes which are formed at positions opposed to the plurality of pressure chambers respectively on a surface of the piezoelectric layer disposed on a side not facing the vibration plate; a plurality of wiring sections, which are connected to the plurality of individual electrodes respectively, are formed on the surface of the nozzle plate and disposed on a side of the actuator, wherein the nozzle plate has an extended portion on which a portion of the wiring sections is directly formed, the extended portion being provided so as to not overlap with the pressure chamber plate in a stacking direction of the plurality of stacked plates.