This is a Compatible Canon 1491A002AA (E-40) Black Laser Toner Cartridge guaranteed to perform with Canon Laser Printers. It replaces the original Canon E40 Laser Toner Cartridge. The compatible replacement 1491A002AA Laser Toner Cartridges and supplies (also known as generic) are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM (Original Equipment Manufacturer) standards for the E-40 and offer high-quality printing results. Containing up to 60% new parts including OPC drums, wiper blades, and other internal parts, they are an economical alternative to expensive OEM 1491A002AA Canon Laser Toner Cartridges and supplies, and offer big savings over brand-name E40 Laser Toner Cartridges and supplies. The use of compatible replacement Laser Toner Cartridges and supplies does not void Printer Warranty. This 1491A002AA (E-40) laser cartridge is also a replacement for Canon OEM part #'s E16, E20, E31, F41-8801-750, F41-8801-750.We offer a 100% Quality Satisfaction Guarantee on our Compatible 1491A002AA (E-40 / E40) Laser Toner Cartridges and supplies.