The EcoTank ET-4700 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. The ET-4700 also offers a 30-sheet ADF, wired and wireless networking and a 2-year limited warranty with registration5.