The Lexmark X 544DTN Printer offers a dynamic ink delivery system for demanding printing environments. Each Remanufactured and Genuine Lexmark X544DTN laser toner cartridge will install easily, reducing downtime normally spent on complicated installations. The Remanufactured and Genuine Lexmark C540 Series Toner cartridges for your Lexmark X544DTN printer were designed with reliable and dependable specifications to withstand the toughest printing tasks. Excellent print quality is guaranteed with our Remanufactured Lexmark Laser Toner cartridges or we will refund your money within 90 days of purchase. And all of our Lexmark Laser Toners and Drum Units have a 1-2 year shelf life for definitive convenience and performance.