Patent ID: 8449059

Claim:
A liquid ejecting apparatus comprising: a liquid discharging unit that ejects liquid contained in a pressure chamber from a nozzle by varying a pressure in the pressure chamber using a pressure generator; and a drive-signal generating unit that generates a drive signal used to cause the pressure generator to operate; wherein the drive signal includes a slight-vibration pulse used to change the pressure in the pressure chamber to an extent that the liquid is not ejected from the nozzle, wherein the slight-vibration pulse includes a first changing component in which a potential changes from a reference potential in a first direction in which the pressure in the pressure chamber is increased by the pressure generator, a second changing component which is generated so as to follow the first changing component and in which the potential changes so as to cross the reference potential in a second direction opposite to the first direction, and a third changing component which is generated so as to follow the second changing component and in which the potential changes to the reference potential in the first direction, wherein the slight-vibration pulse includes a first holding component which connects the first changing component with the second changing component and in which a potential of an end of the first changing component is held, and wherein, for a Helmholtz resonance period of TC in the pressure chamber, a total time that is a sum of a time length of the first holding component and a time length of the second changing component is set to be equal to or longer than 3TC/4 and equal to or shorter than 5TC/4.