Patent ID: 7997705

Claim:
An ink cartridge comprising: a case comprising: an ink chamber configured to store ink therein; and a particular wall; an air communication portion positioned at the particular wall and having a first opening formed therethrough, wherein the air communication portion is configured to place an interior of the ink chamber and an exterior of the ink chamber in fluid communication via the first opening, and the air communication portion comprises: a first lid member configured to move between a first position and a second position, wherein when the first lid member is in the first position, the first lid member does not cover the first opening and when the first lid member is in the second position, the first lid member covers the first opening; and a first biasing member configured to apply a first biasing force to the first lid member toward the first opening; an ink supply portion positioned at the particular wall and having a second opening formed therethrough, wherein the ink supply portion is configured to supply ink from the interior of the ink chamber to the exterior of the ink chamber via the second opening, and the ink supply portion comprises: a second lid member configured to move between a third position and a fourth position, wherein when the second lid member is in the third position, the second lid member does not cover the second opening and when the second lid member is in the fourth position, the second lid member covers the second opening; and a second biasing member configured to apply a second biasing force to the second lid member toward the second opening, wherein when the first lid member is in the second position and the second lid member is in the fourth position, the first biasing force is less than the second biasing force.