Patent ID: 8342622

Claim:
A liquid ejection apparatus comprising: a liquid ejection head that causes liquid stored in a liquid chamber communicating with a nozzle to be ejected from the nozzle and fly as droplets; a sealing member that seals a space including the nozzle; a first pressurizing unit that pressurizes the inside of the space; a second pressurizing unit that pressurizes the inside of the liquid chamber; a valve that communicates the inside of the space with the atmosphere; and a control unit that controls the sealing member, the first pressurizing unit, the second pressurizing unit, and the valve, the control unit, in a state wherein the sealing member has sealed the space and the valve is closed, controlling to increase the pressure of gas inside the space by means of the first pressurizing unit and also increase the pressure of liquid inside the liquid chamber by means of the second pressurizing unit while maintaining the pressure of the gas inside the space equal to or greater than the pressure of the liquid inside the liquid chamber, and then the control unit controlling to return the pressure of the gas inside the space to atmospheric pressure by opening the valve, such that ejection of liquid from the nozzle is initiated.