are epson inks pigment or dye-based?
Epson makes both dye-based and pigment-based inks. Its UltraChrome Hi-Gloss, used in its high-end Stylus Photo R1800 printer, is pigment-based and is rated to last 250 years, while Epson's Claria Hi-Definition, which is used in printers like its Epson Stylus Photo 1400, is claimed to last 98 years.