The Expression ET-3700 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 (1). That’s an incredible amount of ink — enough to print up to 11,200 pages (2), and equivalent to about 30 ink cartridge sets (3). Plus, it features auto-stop ink bottles with each color uniquely keyed for easy filling of each tank. And, you save up to 80 percent on ink with low-cost replacement bottles (4). The ET-3700 also offers a 150-sheet paper capacity, large 2.4" color LCD, auto 2-sided printing, borderless printing up to 8.5" x 11" and easy wireless printing from tablets and smartphones (5). 1. Based on average monthly document print volumes of about 300 pages. 2. Included ink bottle yields based on the ISO/IEC 24712 pattern with Epson’s methodology. Actual ink yields will vary considerably. All ink colors are used for printing & printer maintenance & all colors must be available for printing. For details, see our official site. 3. Cartridge sets estimate based on print yields of included Black & color ink bottles as compared to Epson standard-capacity ink cartridge sets for similarly featured cartridge printers as of March 2017. 4. Savings comparison based on purchase cost of replacement ink bottles & cost of enough cartridges to achieve total page yields of bottles. See product description below for details.