Patent ID: 8141996

Claim:
A liquid ejecting device comprising: a liquid ejecting head comprising a liquid ejecting nozzle; a head tank configured to store liquid to be fed to the liquid ejecting head; a liquid storing container configured to store liquid to be fed to the head tank; a first liquid sending device configured to send liquid from the liquid storing container to the head tank; a suction pump configured to suction liquid from the liquid ejecting head; a pressure adjusting tank configured to store liquid suctioned from the liquid ejecting head; and a second liquid sending device configured to send liquid from the liquid ejecting head to the pressure adjusting tank, wherein the head tank comprises a liquid receiving port configured to receive liquid from the liquid storing container via a liquid receiving valve that is opened when a pressure in the head tank is at or below a predetermined pressure, the head tank further comprises a liquid feeding port configured to feed liquid to the liquid ejecting head, the liquid ejecting head comprises a liquid inflow port communicating with the liquid feeding port, and the liquid ejecting head further comprises a liquid outflow port communicating with the pressure adjusting tank via the second liquid sending device, and wherein the pressure adjusting tank communicates with atmosphere and a level of liquid inside thereof lies at a position lower than the nozzle by a distance set between a maximum water head difference and a minimum water head difference, and a working pressure of opening or closing of the liquid receiving valve is set between a pressure corresponding to the maximum water head difference and a pressure corresponding to the minimum water head difference.