Epson engineered the T157220 157 Photo Cyan Ink Cartridge for the Epson R3000 Printer. Epson utilized their UltraChrome K3 technology to produce deeper, richer tones. With fine art printing in the front of their minds, Epson developed cyan to describe the depth of the oceans and the rich blue of a cloudless sky in your prints. Epson's cyan for the R3000 creates beautiful blues with the UltraChrome K3 technology. Control your prints with the Epson advanced tones.