Printing device, printing method, and printing control program product

摘要

The invention employs at least three chromatic colored inks as well as a chromatic colored ink that has a lower spectral reflectance at each wavelength region in which the spectral reflectance of these three colored inks is greater. The chromatic colored ink is added to the at least three colors to enable printing with minimal differences between colors seen under a certain standard light source and the same colors seen under another light source. It is thus possible to ensure printing with fewer changes in color as a result of changes in light source, such as the ability to produce colors having a generally constant spectral reflectance across all wavelengths by combining inks.