An overall configuration of a printing system and a configuration of a print data generation apparatus are similar to those (see
A procedure of a spectral reflectances prediction process that achieves a spectral reflectances prediction method (spectral characteristics prediction method) according to the present embodiment is schematically similar to that of the above-described first embodiment (see FIG. 4). However, a detailed method of calculating the second relational equation in Step S150 in