Color printing typically uses Cyan, Magenta, Yellow, and Black inks.
Cyan ink absorbs Red light and appears Cyan.
Similarly, Magenta ink absorbs Green light to appear Magenta,
and Yellow ink absorbs Blue light to appear Yellow.
In color printing, it is important to control the ink thickness printed on paper in order to reproduce colors properly.
Color Reflection Densitometer is used as a tool for this purpose.
