The Original Black 728 (3500B002AA) HP Toner Cartridge offers a very high quality, at a reasonable running cost. With this Genuine 728 Toner Cartridge you can achieve high resolution, crisp text with smooth greyscale images and as this 3500B002AA is an original Canon product you will receive accurate Toner levels for the life of the Cartridge.The Original 728 (3500B002AA) Black Toner Cartridge is guaranteed to work in harmony with a wide range of canon Printers. A full list of compatible Printers can be found on this page. The Genuine 728 Cartridge comes with enough high quality Toner powder to produce up to 2100 pages (based on a 5% coverage).