Patent ID: 8430467
Filing Date: 2013-04-30
Classification: B41J

Abstract:
1. A liquid ejecting apparatus comprising: a liquid ejection head including a pressure chamber in which a liquid is stored, a nozzle communicating with the pressure chamber and through which the liquid is ejected, and a pressure generator that applies pressure fluctuation to the liquid stored in the pressure chamber; and an ejection pulse generator that generates an ejection pulse that drives the pressure generator, wherein the ejection pulse sequentially includes: a first voltage change phase where a voltage is changed so as to expand the pressure chamber, a hold phase where an end edge potential of the first voltage change phase is maintained for a predetermined period, and a second voltage change phase where the voltage is changed so as to contract the pressure chamber expanded in the first voltage change phase, and wherein a time t where Tc represents a Helmholtz period of a natural vibration period generated in the liquid in the pressure chamber.