High Yield Return Program Print Cartridge. Lexmark X644e and X646e MFP supplies are designed for the highest quality output. The supplies are designed for easy customer installation and quality performance, from the first page to the last.
Extra High Yield Return Programme Cartridge. The Lexmark T644 print cartridges are designed for easy installation and quality performance to keep printers productive under heavier usage demands and to even further diminish per page costs.
