Patent ID: 8403441

Claim:
A liquid ejecting apparatus comprising: a liquid ejecting head which can eject liquid from a nozzle by driving a pressure generation section which changes a volume of a pressure chamber which communicates with the nozzle; and a control unit which generates a driving signal that includes a driving pulse that drives the pressure generation section, and applies the driving signal to the pressure generation section, thereby controlling the ejection of the liquid; wherein the control unit is constituted so as to be able to generate a first pulse which performs a first maintenance process and a second pulse which performs a second maintenance process, the first pulse is composed of a series of waveform elements which give rise to a change in pressure within the pressure chamber so as to remove air bubbles in a liquid flow path of the liquid ejecting head, the second pulse is composed of waveform elements which includes an ejection portion and a vibration suppression portion so as to remove thickened liquid in the liquid ejecting head, and the control unit executes the second maintenance process by using the second pulse, after execution of the first maintenance process with use of the first pulse, in a maintenance process which restores ejection capability of the liquid ejecting head.