Lexmark 56F1U00 Black Ultra High-Capacity Return Program Toner Cartridge for MS/MX521, 622, MX522, MS621 Printers

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.

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.

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.

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.