Toner cartridges are designed for use with Lexmark T632, T632dtn, T632dtnf, T632n, T632tn, T634, T634dtn, T634dtnf, T634n, T634tn, X632, X632e, X632s, X634dte and X634e. Superior Lexmark design means precision pairing between printer and cartridge for value, quality and environmental responsibility you can count on. Choose Genuine Lexmark supplies for genuine Lexmark results. Return Program toner cartridge is a patented device that is sold at a special price subject to the restriction that the cartridge may be used only once. Following the initial use, return the cartridge only to Lexmark for remanufacture and/or recycling. Toner cartridges offer an extra-high page capacity, yielding 32,000 pages at 5 percent coverage.