LD Remanufactured Toner Cartridge Replacement for Lexmark C5240KH High Yield (Black) 100% Satisfaction & LIFETIME Guarantee Page Yield: 8,000 | Shelf Life: 24-36 Months The use of LD replacement cartridges and supplies does not void your printers warranty. Fast shipping and award-winning customer service For use in Lexmark C524, C524dn, C524dtn, C524n, C524tn, C532dn, C532n, C534dn, C534dtn and C534n