Patent ID: 7677715

Claim:
An ink jet recording apparatus in which an image is formed by imparting aqueous ink discharged from a recording head onto a recording medium, wherein the aqueous ink contains at least a predetermined amount of curl control agent, the aqueous ink has viscosity lower than 4 cp, and the ink jet recording apparatus includes heating means for heating the recording medium to evaporate water content included in the aqueous ink so that the viscosity of the aqueous ink increases, whereby curl generation in the recording medium after the image formation is suppressed, wherein the heating means heats the recording medium at the time when the curl is not generated to evaporate water content included in the aqueous ink, and wherein the heating means is activated when an ink discharge amount per area is not less than 2.23 ml/mm 2 and not activated when the ink discharge amount per area is less than 2.23 ml/mm 2 .