Patent ID: 8113631

Claim:
A liquid ejecting head for ejecting a liquid from a plurality of ejection holes, comprising: a first flow-passage member in which is formed a first liquid-supply passage to which the liquid is supplied from an exterior of the liquid ejecting head; a second flow-passage member in which is formed a second liquid-supply passage connected to the first liquid-supply passage and which has a plurality of outflow ports for dispensing the liquid from the second liquid-supply passage; a third flow-passage member in which are formed (a) at least one common liquid passage each communicating with at least one of the plurality of outflow ports of the second flow-passage member and (b) a plurality of individual liquid passages which are provided so as to respectively correspond to the plurality of ejection holes, each of which is connected to any one of the at least one common liquid passage, and which respectively have pressure chambers formed therein, each of the plurality of individual liquid passages introducing the liquid to a corresponding one of the plurality of ejection holes via a corresponding one of the pressure chambers; and at least one energy giving member configured to give ejection energy to the liquid in each of the pressure chambers that are formed respectively in the plurality of individual liquid passages, wherein the first flow-passage member, the second flow-passage member, and the third flow-passage member are superposed in this order on each other, and wherein the liquid ejecting head further comprises a heater disposed between one surface of the first flow-passage member that faces the second flow-passage member and facing surface of the second flow-passage member as one surface thereof that faces the first flow-passage member.