Patent ID: 7984979

Claim:
A liquid ejecting device comprising: a liquid ejecting head including a nozzle for ejecting a liquid; a liquid supply channel connected to the liquid ejecting head to supply the liquid to the liquid ejecting head; a discharge channel connected to the liquid supply channel through a connecting portion to discharge a gas in the liquid supply channel; a gas permeable film disposed in the connecting portion between the liquid supply channel and the discharge channel, the gas permeable film configured to pass the gas and to not pass the liquid, the gas permeable film partitioning the liquid supply channel and the discharge channel; a suction unit connected to the discharge channel to communicate therewith and configured to suction a gas in the discharge channel to reduce a pressure therein; a switching unit configured to block the communication of the discharge channel with the suction unit when the gas in the discharge channel is not suctioned by the suction unit; and a discharge detecting unit configured to detect that the gas in the liquid supply channel is suctioned and discharged to the discharge channel by the reduced pressure in the discharge channel when the communication of the discharge channel with the suction unit is blocked by the switching unit, wherein the discharge detecting unit detects that the gas in the liquid supply channel is discharged to the discharge channel by detecting a variation in the pressure of the discharge channel.