Patent ID: 7963642

Claim:
An ink-jet printer, comprising: a recording head which ejects ink onto a recording medium; a main tank which stores the ink to be supplied to the recording head; a sub tank configured to be extended and contracted in a vertical direction and including first and second ink flow holes provided in a lower portion of the sub tank, such that the first ink flow hole communicates with the recording head while the second ink flow hole communicates with the main tank; and a communication tube which is connected, at one of opposite ends thereof, to the second ink flow hole and which has, at the other of opposite ends thereof, an opening positioned in an inside space of the sub tank, whereby the second ink flow hole and the inside space of the sub tank communicate with each other via the communication tube, wherein the communication tube is configured such that the opening of the communication tube is displaced downwardly in accordance with the contraction of the sub tank.