Duotone

In Duplex printing is generally understood that a grayscale image with a second color (usually with a spot color ) is printed. Here, the image must be specially color-separated. By duplexing the effect of the image is enhanced.

Moreover, in the vernacular under duplex printing and the simultaneous or, in two steps printing front and back of a medium by means of a computer printer or inkjet plotter be understood, as in the German vernacular, the English term " duplex" untranslated in ( as anglicism ) is used neglect of the difference to the German meaning of the term " duplex printing " (downy friend). Using this colloquial anglicism ' in the written language entails the risk of confusion with the original meaning of the term " duplex printing ".