Hi Donalder1, Disclaimer: Your mileage may vary. The number of printed sheets from a cartridge can be affected by settings and ink coverage. We, here at Epson, use ISO testing that you can read about on the Epson support site. Our results show T822 – Black: 350 pages, Color: 240 pages; T822XL High-capacity – Black; 1,100 pages, Color: 1,100 pages. Regards, Mark - The Epson Team.