The EcoTank ET-2720 wireless all-in-one supertank printer offers Cartridge-Free Printing with easy-to-fill, supersized ink tanks. You get up to 2 years of ink with each included or replacement ink set1. and, each replacement ink bottle set includes enough ink to print up to 4,500 pages2 ― equivalent to about 80 individual cartridges3. Plus, you save up to 80 percent with low-cost replacement ink bottles vs. ink cartridges4. That means less waste. Exclusive uniquely keyed EcoFit™ bottles make it easy to fill each color tank. This premium white printer also offers convenient wireless printing from tablets and smartphones5, plus a 2-year limited warranty with registration6.