Research on Gray Balance in Ink-Jet Printing Based on Paper Color Characteristic

The gray balance in color printing is the basis of accurate color reproduction. In essence, it reproduces accurate gray value by using color ink. In this paper, we choose three kinds of papers with different whiteness, use the same ink -jet printer and the same ink to print gray balance test charts and measure neutral gray blocks in order to draw the gray balance curves. Experimental result shows that the characteristic of gray balance curves obtained by this method are different from those obtained by traditional method. Especially in bright tone, the gray balance data gets a better adjustment, which can improve the exact color reproduction in ink-jet printing.