Each of our remanufactured Lexmark X644A11E toner cartridges has been refurbished with the utmost care and attention by our chosen partners. That means that whatever genuine Lexmark parts can be reused, have been inspected and cleaned, and everything else has been replaced with a X644A11E compatible part.The reassembled Lexmark X644A11E has then been refilled with enough top-quality compatible black toner to offer the same 10,000 page estimated yield as the original. Maintaining continuity is a big concern for our manufacturers, so they have ensured that every remanufactured Lexmark X644A11E is still fully compatible with the X646e, and every other printer mentioned on this page.