Patent ID: 8191985

Claim:
An ink jet printer configured to perform image recording using ink of a plurality of colors, comprising: ink heads provided in correspondence to the colors of the ink; and a heat exchanger configured to adjust a temperature of the ink supplied to the ink heads, wherein the heat exchanger includes: a heat exchange section having ink flow paths which are formed therein in correspondence to the colors of the ink; a heating section which is configured to heat the heat exchange section; a heat radiation section which is configured to come into contact with the heat exchange section and to move away from the heat exchange section; and a contact and separate mechanism which is configured to bring the heat radiation section into contact with the heat exchange section when the heat radiation section radiates a heat of the heat exchange section, and to separate the heat radiation section from the heat exchange section and thereby form a heat conduction-blocking space between the heat radiation section and the heat exchange section, when the heating section heats the heat exchange section.