A set of Rainbow™ sublimation proof devices are studied on both densitometric and colorimetric points of view. Their performances are compared to two kinds of references: a classical Matchprint™ analog proof system, and a set of quadrichromic inks as they are presented in the ISO 12647-2 standard for offset lithographic processes through main quality criteria (solid optical density and dot gain with respect to five typical papers). The study begins by a presentation of the data content of the ISO standard 12647-2 which will be useful for the experimental investigations.As a first preliminary work, densitometric measurements are made on a set of typical offset primary inks on two different papers. A second set of experiments leads to the densitometric and colorimetric characterization of the analog and digital proofers. It is recognized that there are no significant deviations among the digital devices. By considering the color gamuts of all the systems in the L*a*b* space, we show that their calibration slightly lower their performances, but the main result is that these performances largely fullfill the requirements of the ISO standard for offset printing.