Toner cartridge delivers outstanding results page after page in your Lexmark Optra T printers, including T610, T610n, T612, T614, T614n, T614nl, T616 and T616n. Superior Lexmark design means precision pairing between printer and cartridge for value, quality and environmental responsibility you can count on. Cartridge yields approximately 10,000 pages at 5 percent coverage. Lexmark Return Program Cartridges are sold at a discount, vs. 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.