Abstract
The print quality in digital printer like Epson Sty lus Pro 7900 is influenced by the various printing parameters and among these dot shape, screen resolution and paper are considered t o be the major. The study conducted here was to eva luate the print quality in terms of the maximum number of color that it can re produce on two different printing substrates at dif ferent dot shapes and resolutions by maintaining other printing parameter s constant. Linearization and profiling of the Eps on stylus Pro 7900 printer for all these combinations were completed using IT8.7-3 CMYK standard test target using Harlequin RIP V8.3 software. Then the color gamut volumes are analyzed using Taguchi’s Design oexperiments in Mini Tab software. This is done to evaluate the significant parameter that has a major influence on the color g amut. From the result obtained in the project it wa s concluded that change in the dot shapes and resolutions have less influence on t he color gamut than the substrate’s surface propert y. The glossy effect of the Epson proofing commercial 187 GSM paper has shown a signi ficant change in the color gamut in comparison with the other paper properties and printing attributes. There are diffe rent paper substrates available which are mainly ma de for use in ink jet printer and since these digital devices are widely used for pro ofing and by photographers, it is better to take si milar type of study to know the print quality on different paper substrates and mak ing a profile for each paper is a must for achievin g a consistent print in more economic way.
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