Patent ID: 7988269

Claim:
A liquid droplet ejecting device comprising: a liquid droplet ejecting head that ejects a liquid droplet from a nozzle; a liquid storage unit that stores a liquid to be supplied to the liquid droplet ejecting head; a first flow path that connects the liquid droplet ejecting head and the liquid storage unit; a waste liquid tank into which the liquid flows from the liquid droplet ejecting head; a second flow path that connects the liquid droplet ejecting head and the waste liquid storage tank, and connects with the first flow path in the liquid droplet ejecting head; a bypass flow path that is connected with the first flow path and the second flow path; a liquid feed unit that is provided between the liquid storage unit and a connecting portion of the bypass flow path and the first flow path, and feeds the liquid in the liquid storage unit to the liquid droplet ejecting head; a pressure control unit that is provided at the bypass flow path, and controls pressure of the liquid flowing through the bypass flow path from the first flow path side to the second flow path side; a liquid feed bypass flow path that is provided at the first flow path, and bypasses the liquid feed unit to connect the liquid storage unit side and the liquid droplet ejecting head side of the first flow path; and a liquid feed open/close valve that is provided at the liquid feed bypass flow path.