Patent ID: 8020955

Claim:
A liquid ejecting apparatus comprising: liquid chambers in which a liquid is filled; nozzles communicating with the liquid chambers; a signal generator generating signals of potential change; and elements operating in accordance with the potential of the signal to be applied to cause a change in pressure of the liquid filled in the liquid chambers, wherein the signal generator generates a signal for micro vibration which causes micro vibration of a free surface of the liquid to be exposed from the nozzles to such an extent that the liquid is not ejected, and the signal for micro vibration has a first potential change portion at which a potential changes from a first potential to a medium potential defined between the first potential and a second potential, a constant potential portion which is generated after the first potential change portion and at which the potential is constant at the medium potential, and a second potential change portion which is generated after the constant potential portion and at which the potential changes from the medium potential to the second potential, wherein a duration of the second potential change portion is equal to or longer than an intrinsic vibration cycle of the elements.