Patent ID: 8277033

Claim:
A liquid-drop ejecting apparatus comprising: a liquid-drop ejection head including an ejection portion configured to eject a liquid drop; a first tank including: a liquid storage chamber for storing therein a liquid to be supplied to the liquid-drop ejection head; a gas chamber formed therein; a communication hole connecting the liquid storage chamber and the gas chamber; a gas-permeable membrane which covers the communication hole, and by which the liquid storage chamber and the gas chamber is divided; and a suppression member provided in the gas chamber and configured to contact with the gas-permeable membrane which is deformed to project toward an inside of the gas chamber, so as to suppress the deformation of the gas-permeable membrane, wherein an inner surface of the gas chamber includes a facing area which faces a surface of the gas-permeable membrane, wherein the suppression member comprises a projecting portion which projects from the facing area towards the gas-permeable membrane in a projecting direction, and wherein a facing surface is provided at an end of the projecting portion in the projecting direction; a second tank for storing therein a liquid to be supplied to the liquid storage chamber in the first tank; and a negative pressure generation unit configured to generate a negative pressure in the gas chamber.