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Study of Color Quality Uniformity in Digital Dry Toner Electro-photographic Printing

 Abstract — The value of digital printing today lies not only in replicating offset work on a smaller scale or at a shorter run length, but it lies in developing unique, high-value products. Also digital printing has made inroads in the packaging markets, where offset and flexography have been long dominant. Kodak NexPress2100 Plus is an example of digital dry toner electro-photographic computer-to-print system, targeted to short runs in commercial, publication, and even packaging environmental printing. In this paper we take a close look at the color capabilities of a current high-speed electro-photographic digital dry toner Kodak Nexpress2100 Plus printing machine. As a result we found a large color gamut for three different types of paper, reproducing pleasing color images with process CMYK dry toners. For assessing uniformity of the printed quality it is relevant to be compared different samples printed successively on the same paper and the same conditions. Printed tests by digital printing platform are included. Thus we are able to assess the printed results to form our analyses regarding color characteristics achieved. Upon visual and quantitative analyses this paper concludes that digital Kodak Nexpress2100 Plus has shown the great advantage giving print service providers the ability to handle new and different applications.