To provide an ink-jet recording apparatus capable of overcoming the pressure loss in an ink supply tube and eliminating the risk of ink leakage from an ink supply path.

An ink supply pump 21 for receiving an ink from an ink cartridge disposed on the main body side via an ink supply tube is provided in a carriage of the recording apparatus. The ink supply pump comprises an ink chamber 25 having a flexible diaphragm 24 for receiving the ink from the ink supply tube, a bimetal 26 for sending out the ink in the ink chamber 25 to the recording head side by deforming the diaphragm 24 according to the temperature change, and a Peltier element 22 for changing the temperature of the bimetal 26.