Carrot's compatible laser toner cartridges and supplies for Canon FC-310 are designed to offer the best print performance, dependability and consistent yields that meet or surpass Canon OEM (Original Equipment Manufacturer) specifications for the Canon FC-310 and offer high-quality output. These compatible toners are brand new and are a smart alternative to high-cost OEM Canon laser toner cartridges and supplies, offering substantial savings over the brand-name laser toner cartridges and supplies. Using compatible replacement laser toner cartridges and supplies for your Canon FC-310 will not void your printer warranty. Carrot Ink guarantees 100% satisfaction on quality FC-310 laser-toner cartridges and printing supplies.