Return Program ink cartridges are designed for use with Lexmark S315, S415, S515, Pro715 and Pro915. This printhead technology creates sharp results and brilliant prints every time. Precise, consistent drop placement creates vibrant documents with sharp, clear text and vivid images. Fast-drying inks create smooth, uniform colors and help ensure smear-resistant, two-sided printing. High-yield cartridges deliver more than three times the number of pages as standard-yield cartridges so you replace cartridges less often. 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 cartridge yields approximately 750 pages.