Patent ID: 7537330

Claim:
An ink-jet recording apparatus equipped with an ink set comprised from n types (n is an integral number where n≧2), wherein the ratio of viscosity of ink of the minimum viscosity/viscosity of ink of the maximum viscosity in the ink set is 0.6 or less; wherein viscosity at 20° C. of the respective inks of the ink set is set to V 1 , V 2 , . . . , Vi, . . . , Vn (where V 1 is the maximum viscosity); wherein the nozzle resolution of a discharge nozzle allocated to the respective inks is set to R 1 , R 2 , . . . , Ri, . . . , Rn; and wherein when coefficient ki=Vi/V 1 , (i is an arbitrary integral number of 1 to n), 0.8 ×ki×R 1 ≦Ri≦ 1.2 ×ki×R 1, and 0.2 <ki≦ 1.0 is realized for every i.