Lexmark C5240KH, C5240CH, C5240MH, C5240YH High Yield Toner Cartridge Set Approximately 15,000 pages for black and 18,000 pages for colored Competitive price with high quality/stable printing capacity/smart and fluent printing performance Saves ink and reduces damage to the printer head. Easy to Install and Use Compatible: Lexmark C524/Lexmark C534/Lexmark C534dn