Lexmark Unison 600XA Toner Cartridge, Laser, Extra High Yield, Black, (60F0XA0)

<br /><br /><b>Lexmark Return Program Cartridges</b><br/>Going green has never been easier. Recycle all your used Lexmark supplies is simple- smart and always free.<br/>Lexmark Return Program cartridges are patented print cartridges sold at a discount in exchange for the customer’s agreement to the license requirement that the cartridges will be used only once and returned only to Lexmark for remanufacturing and/or recycling. The Return Program cartridges are licensed for single use only and are designed to stop working after the delivery of a fixed amount of toner/ink. A variable amount of toner/ink will remain in the cartridge when replacement is required. In addition- the cartridge is designed to automatically update the memory in your printer to protect against the introduction of counterfeit and/or unauthorized third-party cartridges.