Abstract
Gray balance is the basic and critical control parameters of color reproduction, which plays important rule as lever in color reproduction which balance the correlation of material characters and process control parameters. This paper focused on investigation about gray balance data variation caused by slight chromaticity deviation of printing material. In the experiment the creation procedure of gray balance curve was simulated by EPSON Stylus Pro7880c ink-jet printer, and delivered curves were compared with each other. Accordingly the tone value variation of primary color was analyzed in terms of chromaticity deviation of paper. Meanwhile the variation tendency of gray balance impacted by ink and paper property was qualitatively discussed according to data comparison with G7 method. Results show that tone value of Y is so sensitive to paper chromaticity deviation that even the dominant relation between Y and M tone will be altered. At the same time, the more the ink and paper property coincide with ISO standard, the more curve of gray balance curve coincide with theoretically ideal value.
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