Return Program ink cartridges deliver outstanding results page after page in your Lexmark Z2300, Z2320, X2650, X2670 and X2600. Exclusive pigmented black and dye-based color ink coupled with an increased number of printhead nozzles and swath size consistently produce high-quality prints at unprecedented print speeds. Print business quality text and graphic documents with high visual impact due to sharper black inks. Nonrefillable cartridge is licensed for single use only. Lexmark Return Program Cartridges are sold at a discount, versus the prices of regular cartridges, in exchange for the customer's agreement to use the cartridge only once and return it only to Lexmark for remanufacturing or recycling. Each ink cartridge yields approximately 150 pages.