Liquid ejecting apparatus and maintenance method of liquid ejecting apparatus

A liquid ejecting apparatus comprising:

• a liquid ejecting portion that has a supply port through which a liquid flows in, a discharge port through which the liquid flows out, a common flow path communicating with the supply port and the discharge port, an individual liquid chamber communicating with the common flow path, a nozzle communicating with the individual liquid chamber, a nozzle surface on which a plurality of the nozzles are open, and a discharge element, and that discharges the liquid in the individual liquid chamber from the nozzle toward a medium by driving the discharge element;
• a liquid supply flow path coupled to the supply port so that the liquid is supplied to the liquid ejecting portion;
• a liquid return flow path coupled to the discharge port so that the liquid supplied to the liquid ejecting portion is returned to the liquid supply flow path;
• a pressurization mechanism that pressurizes the liquid in the liquid ejecting portion;
• a return valve provided in the liquid return flow path and configured to take a valve-closed state blocking a flow of the liquid and a valve-opened state allowing the flow of the liquid;
• and
• a control portion, wherein
• the control portion performs a pressurization discharge operation of discharging the liquid from the nozzle by causing the pressurization mechanism to pressurize the liquid in the liquid ejecting portion and a pressure lowering operation of causing the pressurization mechanism to stop the pressurization in the liquid ejecting portion, and performs the pressure lowering operation in a state where the return valve is closed.