Patent ID: 7753506

Claim:
An ink cartridge, comprising: a first surface; a second surface opposite the first surface; an ink chamber configured to store an ink and at least a portion of the ink chamber is positioned between the first surface and the second surface; a gripping part extending from the second surface in a first direction away from the ink chamber, wherein a width of the gripping part is less than a width of the ink chamber in a second direction which is substantially perpendicular to the first direction, wherein the gripping part has an inner space formed therein, and the inner space is in fluid communication with the ink chamber and wherein the gripping part is configured to indicate a color of ink stored in the ink chamber; a first communication chamber extending from the ink chamber toward the first surface; a first valve device disposed within the first communication chamber and configured to selectively allow and prohibit a fluid communication between the ink chamber and an exterior of the ink cartridge; a second communication chamber extending from the ink chamber toward the first surface; and a second valve device disposed within the second communication chamber and configured to selectively allow and prohibit the fluid communication between the ink chamber and the exterior of the ink cartridge.