The WorkForce ET-4850 EcoTank all-in-one, powered by heat-free PrecisionCore®, offers revolutionary cartridge-free printing with easy-to-fill, super-sized ink tanks. It includes up to 2 years of ink in the box. That's an incredible amount of ink - enough to print up to 14,000 pages black, and 5,200 pages colour, equivalent to about 161 individual cartridges. The ET-4850 offers wireless printing from tablets and smartphones. Plus, it features auto-stop ink bottles with each colour uniquely keyed for easy filling of each tank. The ET-4850 also offers a high-capacity 250-sheet paper tray, fax, 2.4" colour touchscreen, 30-sheet ADF, fast auto 2-sided printing, and convenient wired and wireless networking.