Patent ID: 8220916

Claim:
An ink jet recording apparatus comprising: a discharge head that discharges ink, which hardens by receiving light, toward a recording medium; a feed device that feeds the recording medium in a medium feeding direction while having the recording medium opposed to the discharge head; and a light emitting device that irradiates the light to the ink that is discharged from the discharge head, the light emitting device including: a substrate that has a first face and a second face which is a face opposite to the first face; a plurality of light emitting elements that emits the light, the plurality of light emitting elements are mounted on the first face; a thermally conductive member that is provided so as to be in contact with the second face; a heat radiation member that is provided so as to be in contact with the thermally conductive member; a cover that encloses the heat radiation member, the cover including air intake holes formed in the cover; and a blower that introduces outside air present outside the cover into the cover through the air intake holes, wherein the blower is configured to bring the outside air to the heat radiation member, wherein the cover has an exhaust port so as to exhaust air inside the cover toward a downstream side of the medium feeding direction, the exhaust port formed in a face of the cover that faces the medium feeding direction in the downstream side.