Patent ID: 8313171

Claim:
A liquid jetting head which jets a liquid, comprising: a cavity unit which has a nozzle surface in which a plurality of nozzle rows each having a plurality of nozzles arranged in a row is formed, a plurality of pressure chambers which communicate with the nozzles, respectively, and a plurality of common liquid chambers which correspond to the nozzle rows and each of which communicates with the pressure chambers communicating with nozzles included in one of the nozzle rows, the liquid being supplied from the common liquid chambers to the nozzles via the pressure chambers, in the cavity unit; and a pressure applying mechanism which applies a pressure to the liquid in the pressure chambers, wherein the liquid is supplied to each of the common liquid chambers, from two end portions in a longitudinal direction of one of the common liquid chambers, toward a central portion of the one of the common liquid chambers, and a position of an equilibrium point at which a channel resistance of both sides in the longitudinal direction is balanced is shifted mutually in the longitudinal direction, in one of the common liquid chambers and an adjacent common liquid chamber which is located adjacently to the one of the common liquid chambers.