When color copies are made of color copies, color errors and noise grow from generation to generation. This paper presents two techniques for suppressing these problems. Both prevent color drift. One is optimum for flat color areas, and the other is optimum for sweeps or pictorial images. Methods for combining the two techniques are also discussed.
Martin Maltz, Raja Balasubramanian, "Multigeneration Color Copying" in Proc. IS&T 2nd Color and Imaging Conf., 1994, pp 54 - 55, https://doi.org/10.2352/CIC.1994.2.1.art00015