The Lexmark X 546DTN Printer offers a dynamic ink delivery system for demanding printing environments. Each Genuine Lexmark X546DTN laser toner cartridge will install easily, reducing downtime normally spent on complicated installations. The OEM / Genuine Lexmark C540 Series Toner cartridges for your Lexmark X546DTN printer were designed with reliable and dependable specifications to withstand the toughest printing tasks. Excellent print quality is guaranteed with our Genuine 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 up to a 2 year shelf life for definitive convenience and performance.