Patent ID: 8167396

Claim:
A liquid ejecting apparatus comprising: a pressure generating element that generates a pressure applied to the pressure chamber; a liquid discharging head which provides pressure fluctuations into a pressure chamber to eject liquid from a nozzle; and a driving signal generation section which generates a driving signal including a micro-vibration pulse which drives the pressure generation element, thereby vibrating liquid in the nozzle to an extent that does not discharge liquid from the nozzle, wherein the micro-vibration pulse includes a first voltage change portion in which voltage changes in a first direction of changing the voltage, and a second voltage change portion which occurs subsequent to the first voltage change portion and in which voltage changes in a second direction opposite to the first direction, the second voltage change portion includes a first change element which occurs subsequent to the first change portion and in which voltage changes in the second direction, a voltage maintaining element which follows the first change element and maintains a termination voltage of the first change element, and a second change element which follows the voltage maintaining element and in which voltage changes in the second direction, and when a time from a start point time of the first voltage change portion to an end point time of the first voltage change portion is set as t 1 , a time from the end point time of the first voltage change portion to a start point time of the second voltage change portion is set as t 2 , and a natural vibration period of liquid in a liquid flow path including the pressure chamber is set as Tc, the start point time (t 1 +t 2 ) of the second voltage change portion is set to be in the range of any one of the following expressions: ( t 1+ t 2)< t 1/2+3 Tc/ 8; or ( t 1+ t 2)> t 1/2+5 Tc/ 8.