Patent ID: 7533975

Claim:
An ink-jet recording apparatus comprising: a recording head that has a plurality of sub-tanks, each of the sub-tanks storing a different color of ink, the recording head recording an image onto a recording medium by selectively ejecting different colors of ink in the sub-tanks from ejection nozzles; main tanks that store ink to refill the corresponding sub-tanks; and an ink supply member that supplies the ink in the main tanks to the corresponding sub-tanks, each of the sub-tanks being provided with an ink supply opening for receiving the ink to be supplied, the ink supply member supplying the ink in the main tanks to the ink supply openings provided in the sub-tanks, and wherein at least four ink supply openings are provided, the at least four ink supply openings are arranged to form a zigzag shape, and each of the ink supply openings is provided on a side surface of the corresponding sub-tanks at a normal use state of the ink-jet recording apparatus, and a darkest color of ink among the plurality of colors of ink is supplied to the ink supply opening of all the ink supply openings which is arranged at a lowest position.