Liquid ejecting apparatus and method of driving liquid ejecting apparatus

A method of driving a liquid ejecting apparatus including an ejecting section that is configured to eject liquid within a pressure chamber according to deformation of a piezoelectric element, a generator that is configured to generate an inspection signal that deforms the piezoelectric element, and a vibration detector that is configured to detect a residual vibration occurring in the ejecting section after the inspection signal is supplied to the piezoelectric element, the method comprising:

• causing the generator to generate the inspection signal including a first potential-changing element having a potential that changes from a first potential to a second potential in one direction in a first time period, a first potential-maintaining element having the second potential maintained in a second time period immediately after the first time period, a second potential-changing element having a potential that changes from the second potential to a third potential in the other direction in a third time period immediately after the second time period, and a second potential-maintaining element having the third potential maintained in a fourth time period immediately after the third time period;
• and
• causing the vibration detector to detect the residual vibration in a detection period included in the fourth time period, wherein
• when a natural vibration period of the ejecting section is TC, a length of the first time period is equal to or longer than 0.75×TC.