Toner/print cartridges are designed for use with Lexmark C772. Offer an easy front-loading design with a simple, intuitive user interface. The only additional supply product necessary other than print cartridges is a simple waste toner container. Cartridges yield up to 15,000 pages based on approximately 5 percent coverage. Lexmark Return Program Cartridges are sold at a discount, versus the prices of regular cartridges, in exchange for the customer's agreement to use the cartridge only once and return it only to Lexmark for remanufacturing or recycling.