Patent ID: 7753501

Claim:
A liquid supply system to and from which a liquid storing container is capable of being attached and detached so as to direct a first communication hole and a second communication hole in a vertically downward direction, the liquid storing container being provided with a liquid storing portion, the first communication hole and the second communication hole that are arranged in one side face of the liquid storing portion, and a cylindrical member that is connected to the second communication hole and is installed in the liquid storing portion, the liquid supply system comprising: a first flow path for connecting the first communication hole with a recording head; a second flow path for communicating the second communication hole to outside air; a third flow path for connecting the first flow path with the second flow path, and a driving unit for a gas or a liquid, wherein the driving unit is capable of circulating the gas stored in the liquid storing portion in order of the cylindrical member, the second communication hole, the second flow path, the third flow path, the first flow path and the first communication hole.