Return Program toner cartridge lets you change cartridges less, save more per print, and reduce your environmental footprint. Toner produces outstanding results page after page in Lexmark C748de, C748e and C748dte. Superior Lexmark design means precision pairing between printer and cartridge for value, quality and environmental responsibility you can count on. Choose Genuine Lexmark supplies for genuine Lexmark results. Return Program cartridges are patented print cartridges sold at a discount in exchange for the customer's agreement to the license requirement that the cartridges will be used only once and returned only to Lexmark for remanufacturing or recycling. These patented cartridges are licensed for single use only. Cartridge yields approximately 10,000 pages.