The underlying non-linearity of how print colorants combine makes color control in printing significantly more complex than for other color imaging devices. While in additive systems a measurement of their few primaries and per-channel non-linearities versus luminance is a sufficient basis for predicting color output, printing typically requires the measurement of a large number of colorant combinations. This requirement for many measurements makes accurate color output more challenging and means that setting up a printing system's color control can be time consuming and costly. The solution presented in this paper involves a new use of the HANS approach, which instead of print optimization looks for simplifying print color formation and therefore also control. In a nutshell this can be achieved by only ever combining eight basic colorant patterns, which results in a display-like color gamut and allows for color control on the basis of their eight measurements and those of the printing system's optical dot gain.
Ján Morovič, Peter Morovič, Martí Rius, Juan Manuel García–Reyero, "8 vertex HANS: An ultra-simple printer color architecture" in Proc. IS&T 21st Color and Imaging Conf., 2013, pp 210 - 214, https://doi.org/10.2352/CIC.2013.21.1.art00038