Toner cartridge is designed for use with Lexmark T640, T640dn, T640dtn, T640n, T642, T642dtn, T642n, T642tn, T644, T644dtn, T644n, T644dtn and T644tn for outstanding results page after page. Superior Lexmark design means precision pairing between printer and cartridge for value, quality and environmental responsibility you can count on. Cartridge yields approximately 6,000 pages.
