Martin Orpen via colorsync-users wrote:
How can you profile it?
Like any other output device!
We have coatings that are only visible to humans under specific illuminants, coatings that change colour dependent on temperature, coatings that fluoresce, coatings that are magnetic etc etc.
As you well know, you need special instruments to characterize optical properties other than color. If you load a printer up with inks that have such special characteristics, then using conventional color measurement is unlikely to be a good characterization of its appearance or other physical characteristics. So this is all irrelevant to the discussion, since it strays outside the realm of spectral characteristics and color.
If I can run any known coating to any known substrate then the output device would become as difficult to profile as an input device wouldn’t it?
No, it would be more difficult. An input device can be characterized measuring its spectral sensitivity. Cheers, Graeme Gill.