Ultrachrome pigment ink has been developed to incorporate the color gamut of dye based ink and the longevity and short term color stability properties of pigment based ink this new ink system incorporates a light black as the 7th color ensuring smoother monochrome gradations and 2 types of black ink matte amp photo ensuring the maximum quality on all media types can be achieved for use with epson color proofer 7600 9600 epson stylus pro 4000 pro 4000 c4 pro 4000 c8 pro 4000 pos pro