Patent ID: 8118415

Claim:
An ink cartridge comprising: an ink tank comprising: an ink chamber formed in an interior of the ink tank; a first wall separating the interior of the ink tank and an exterior of the ink tank, wherein the first wall has a first opening formed therethrough, a partition wall connected to the first wall, wherein the partition wall defines a first chamber formed therein, and the first chamber is continuous with the first opening; and a divider, wherein the first chamber and the ink chamber are in fluid communication via the divider, and when ink flows through the divider from the first chamber to the ink chamber, the divider is configured to divide a first air bubble contained in the ink into a plurality of second air bubbles, wherein a size of the first air bubble is greater than a size of each of the plurality of second air bubbles; and a pump configured to selectively force ink into and out of the interior of the ink tank.