Continuous Ink System CIS for Epson Stylus Photo R290 Printers using T0821 T0826 Cartridges Each delivery cartridge contains an everlasting ARC that overrides the ink level control software Smudge-Proof, Fast Drying, Fade Resistant Prints Precisely Calibrated Ultra Wide Color Gamut Equivalent to 60 Cartridges - Save $900 Compared to Buying New Cartridges Simple and Convenient Refilling Process