Patent ID: 6926393

Claim:
A liquid jetting head comprising: a nozzle plate having a plurality of nozzles; a flowing-path plate layered on the nozzle plate, the flowing-path plate having a plurality of nozzle-communicating chambers and a plurality of elongated pressure-chambers, the plurality of nozzle-communicating chambers respectively communicating with the plurality of nozzles, the plurality of pressure-chambers respectively communicating with the plurality of nozzle-communicating chambers, and the plurality of pressure-chambers being open to a side away from the nozzle plate; a vibrating plate commonly sealing the open surfaces of the plurality of pressure-chambers of the plowing-path plate; and a plurality of pressure-generating units that respectively change the pressures of liquids in the respective pressure-chambers; wherein: the plurality of nozzles are aligned on a line segment; at least one of the pressure-chambers communicating with at least one of the nozzles in the vicinity of an end of the line segment is formed so as to have a shorter length than at least one of the pressure-chambers communicating with at least one of the nozzles away from the end of the line segment; and at least two of the pressure-chambers communicating with at least two of the nozzles in the vicinity of the end of the line segment are formed so as to have shorter lengths in order toward the end of the line segment.