A Comparative Study on Analog and Digital Printing Systems Performances
Abstract:Our work consists in a comparison of various printing systems: offset lithography, analog Matchprint proofing, Rainbow sublimation proofing, Epson 5000 inkjet printing, Docucolor 2045 digital printing.
Several paper grades were used (mainly matt and glossy coated papers). With the offset process as a reference, the goal was to characterize print rendering for each printing technique by means of colorimetric and densitometric quality parameters. In the first class, we find:
- color gamut volumes, in order to decide whether (and to which extent) the standard quadrichromic offset process reproducible colors are included within the borders of the other gamuts or not,
- color L*a*b* coordinates associated to primaries and to their combinations and corresponding to the same CMYK set of values in the original computer file.
The densitometric measurements were : solid density, dot gain, and relative contrast index.
With the help of a novel method, we can exploit the whole necessary set of informations to automatically calculate all the above figures from experimental data using an IT8-7.3 test chart. This leads to a possibility to classify printing systems at least qualitatively: the results show the offset paper has the smallest performance of all the tested systems.
Document Type: Research Article
Publication date: January 1, 2002
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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