Standard Yield: Never compromise. Because Lexmark's Standard outpaces the competition's, you can keep up - front cost low and quality high. Technology: Outstanding results page after page, year after year. Superior Lexmark design means precision pairing between printer and cartridge for value, quality and environmental responsibility you can count on. 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 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. Average Continuous Composite CMY Declared Cartridge Yield up to 1,000 standard pages in accordance with ISO/IEC 19798.