| US 7,537,330 B2 | ||
| Ink-jet recording apparatus, ink-jet recording method, and print | ||
| Chie Saito, Nagano-ken (Japan); and Masayuki Momose, Tochigi-ken (Japan) | ||
| Assigned to Seiko Epson Corporation, Tokyo (Japan) | ||
| Filed on Mar. 13, 2006, as Appl. No. 11/374,412. | ||
| Claims priority of application No. 2005-076933 (JP), filed on Mar. 17, 2005; and application No. 2006-067020 (JP), filed on Mar. 13, 2006. | ||
| Prior Publication US 2007/0085864 A1, Apr. 19, 2007 | ||
| Int. Cl. G01D 11/00 (2006.01) | ||
| U.S. Cl. 347—100 [347/95; 347/96] | 8 Claims |
| 1. 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 V1, V2, . . . , Vi, . . . , Vn (where V1 is the maximum viscosity);
wherein the nozzle resolution of a discharge nozzle allocated to the respective inks is set to R1, R2, . . . , Ri, . . . , Rn; and
wherein when coefficient ki=Vi/V1, (i is an arbitrary integral number of 1 to n),
0.8×ki×R1≤Ri≤1.2×ki×R1, and
0.2<ki≤1.0
is realized for every i.
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