Patent ID: 8240827

Claim:
A liquid container configured to be mounted to a container mounting portion of a liquid supply device in a mounting direction, the liquid container comprising: a container body comprising a liquid chamber formed therein, wherein the liquid chamber is configured to store liquid therein, and the container body comprises a front face facing forward in the mounting direction during a mounting of the liquid container to the container mounting portion; a liquid supply portion configured to supply liquid from the liquid chamber to an exterior of the container body; and an air introduction portion configured to introduce air from the exterior of the container body into the liquid chamber, wherein the air introduction portion comprises: an air introduction chamber; a first path through which the air introduction chamber is configured to be in communication with the liquid chamber; a second path extending in the mounting direction from the air introduction chamber and is opened to the exterior of the container body at the front face of the container body; an air communication path through which the air introduction chamber is configured to be in communication with the exterior of the container body, wherein the air communication path is configured to introduce air into the air introduction chamber therethrough; a valve member extending through the first path and the second path and comprising a first valve configured to open and close the first path and a second valve configured to open and close the second path, the valve member being movable, such that when the first valve closes the first path the second valve opens the second path, and when the second valve closes the second path the first valve opens the first path; and an urging member configured to urge the valve member in such a direction that the first valve closes the first path and the second valve opens the second path, wherein the valve member is configured to be moved relative to the air introduction chamber in a direction opposite to the mounting direction against an urging force of the urging member by coming into contact with the container mounting portion when the liquid container is mounted to the container mounting portion, such that the second valve closes the second path and the first valve opens the first path.