Since copying machines read originals in three-color RGB and print in four-color CMYK, they must convert RGB input data into CMYK data. To take full advantage of the expanded color-reproduction range made possible by its toner, Canon incorporated technological innovations into its image-processing algorithms.

This technology incorporates direct-mapping computing processing, which directly assigns input signals to memory colors, and matrix-computing processing, which adapts output signals to human perception based on various engine characteristics. The combination of this technology with the toner achieves the reproduction of subtle highlights and all the gradation and delicate texture required to naturally convey such qualities as skin tones.