Lexmark C5240CH High Yield Cyan Laser Toner Cartridge Part Number - C5240CH Yield Value ~ 5,000 Pages Shelf Life - 2 Years Compatible Printers: Lexmark C524n Lexmark C524dn Lexmark C524dtn Lexmark C524 Lexmark C534n Lexmark C534dn Lexmark C534dtn Lexmark C532n Lexmark C532dn Lexmark Return Program Cartridges are sold at a discount versus the prices of regular cartridges in exchange for the customers agreement to use the cartridge only once and return it only to Lexmark for remanufacturing or recycling. Regular cartridges without this license/agreement sold at regular prices are also available. Regular cartridges are also recyclable at no cost through Lexmark Cartridge Collection Program.