The wireless EcoTank all-in-one with revolutionary cartridge-free printing and easy-to-fill ink tanks. The Expression ET-3600 EcoTank wireless all-in-one offers revolutionary cartridge-free printing with easy-to-fill supersized 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 11,000 black/8,500 color pages, and equivalent to about 50 ink cartridge sets. The ET-3600 delivers an unbeatable combination of convenience and value. Save up to 80 percent on ink with low-cost replacement bottles, and save up to 50 percent on paper with auto 2-sided printing. This fast, user-friendly printer also features a 150-sheet paper capacity, and offers wireless printing from tablets and smartphones.