Our Compatible supplies for the Canon PC680 have a 100% Satisfaction Guarantee. The Canon PC-680 uses our Compatible Laser Toner Cartridge. Our compatible laser toner-cartridge for the Canon PC 680 replaces the original Canon Laser Toner Cartridge. The compatible replacement Laser Toner Cartridges and supplies (also known as generic) for your Canon PC680 are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM (Original Equipment Manufacturer) standards for supplies for your Canon PC-680. Our Canon supplies for your Canon PC-680 are from an ISO-9001 certified factory just like the genuine Canon toner. We offer a 100% Quality Satisfaction Guarantee on Canon PC680 Laser Toner Cartridges and Supplies.