Product Details Genuine Lexmark supplies are engineered to work Best Together with your Lexmark printer, delivering excellent print quality from the first page to the last. Consistently outstanding image quality. Long-life system reliability. Superior sustainability. Innovative shake-free print system. Lexmark Return Program Cartridges Going green has never been easier. Recycle all your used Lexmark supplies is simple, smart and always free. 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. Black Yields up to 1,200 pages Original Cartridge Mfr's # B221000