EcoTank is a line of printers developed by Epson that features a unique refillable ink tank system. Unlike traditional printers that use cartridges, EcoTank printers come with large ink tanks that can be easily refilled, reducing the need for frequent replacements and minimizing waste. These printers are designed for high-volume printing, making them cost-effective for both home and office use. With the ability to print thousands of pages before needing a refill, EcoTank models offer convenience and efficiency, appealing to users who prioritize sustainability and lower printing costs.