Patent ID: 7234803

Claim:
An ink jet recording cartridge comprising: an ink jet recording head configured to discharge ink; at least one absorber holding the ink; a case including: at least one ink containing chamber sized and shaped to contain the absorber therein and having an opening, wherein the ease supports the ink jet recording head affixed thereto; and an ink introducing section communicating the ink containing chamber with the ink jet recording head; a lid having a plurality of ribs, wherein the lid is adapted to attach to the case at the opening of the ink containing chamber such that the ribs abut the absorber to press the absorber against the ink introducing section, wherein the plurality of ribs includes first ribs having a different height than the other plurality of ribs, wherein the lid is adapted to attach to a plurality of kinds of ink jet recording cartridges that are different from each other in the number of the ink containing chambers, wherein the plurality of kinds of ink jet recording cartridges includes a black cartridge having the ink containing chamber containing a black ink, and a color cartridge having three ink containing chambers containing three color inks, and a T-shaped inner wall defining the three ink containing chambers of the color cartridge, and wherein the plurality of ribs includes first ribs provided at substantially a central portion of the three ink containing chambers, and second ribs provided at positions along a periphery of the ink containing chambers, and wherein the height of the second ribs being higher than that of the first ribs.