Patent ID: 8025379

Claim:
An ink cartridge, comprising: a case comprising a front face and a rear face opposite the front face, wherein the case has at least a portion of an ink chamber defined therein, and the ink chamber is configured to store ink; an ink supply portion positioned at the front face of the case, wherein the ink supply portion is configured to dispense ink from an interior of the ink chamber to an exterior of the ink chamber; an air intake portion positioned at the case, wherein the air intake portion is configured to draw air into the ink chamber, such that air contacts ink stored in the ink chamber; a movable member positioned outside the case, and configured to move between a first position and a second position relative to the case, the movable member having a particular opening formed therethrough, wherein the ink supply portion is separated from the particular opening when the movable member is in the first position, and at least one of a portion of the ink supply portion and a portion of the ink chamber is positioned within the particular opening when the movable member is in the second position, and the particular opening has a predetermined size; and at least one resilient member positioned outside the case, wherein the at least one resilient member has a first end which is coupled to the front face of the case and a second end which is coupled to the movable member, wherein the at least one resilient member is configured to expand and to contract to move the movable member relative to the case between the first position and the second position.