Essential to Lexmark Print System Performance. Consistently outstanding image quality. Long-life system reliability. Superior sustainability. Innovative shake-free print system.

Unison? Toner Essential to Lexmark print system performance, Unison? Toner's unique formulation consistently delivers outstanding image quality, ensures long-life print system reliability and promotes superior sustainability -- all in an innovative shake-free print system.High Yield Maximize your savings and enjoy premium quality with Genuine Lexmark cartridges. High Yield cartridges offer a lower cost per page and contain more pages than Standard Yield cartridges do. Perfect for high volume printing.Best Together Genuine Lexmark supplies are engineered to work Best Together with your Lexmark printer, delivering excellent print quality from the first page to the last.Lexmark Cartridge Collection Program Going green has never been easier. Recycle all your used Lexmark supplies by letting us take care of the details. It?s simple, smart and always free.Lexmark Return Program Cartridges Lexmark Return Program supplies are sold at a special price contingent upon the customer's agreement to use the supplies only once and return the supplies only to Lexmark for remanufacturing and/or recycling after using them. The Return Program supplies will stop working after reaching end of the rated life established by Lexmark. A variable amount of toner may remain when replacement is required. In addition, the supplies may automatically update the memory in your printer to protect against the introduction of counterfeit and unauthorized products.Product Condition OriginalProduct Type Toner CartridgePrint Technology LaserPrint Color BlackYield Type Extra HighTypical Print Yield 20000 PagesCompatibility Lexmark Printers: MX421ade MX521de MX521ade MX522adhe MX622ade MX622adhe MS421dn MS421dw MS521dn MS621dn MS622deTAA Compliant Yes