We offer original factory (OEM) and refilled original ink cartridges for the printers we sell with high-quality expectations. Our suppliers are market-leading international companies, and their quality inks meet the needs of viscosity, durability, colour fidelity, wide colour range, colour stability, and outdoor use. (The ink, if the print head is integrated with the ink tank, is an ink cartridge; if the ink tank is replaceable separately, it is available as an ink cartridge, ink tank, and ink refill.) Inks generally have a shelf life of 2-3 years. We sell water-based dye and pigment inks - not solvent-based ones.