Lexmark Return Program Cartridges are sold at a discount versus the prices of regular cartridges in exchange for the customers agreement to use the cartridge only once and return it only to Lexmark for recycling. Regular cartridges without this license/agreement sold at regular prices are also available. Regular cartridges are also recyclable at no cost through Lexmark Cartridge Collection Program. – Compatible with Lexmark C770n C770dn C770dtn C772n C772dn and C772dtn printer models. – Yield: Up to 6 000 pages at approximately 5% coverage. – The Lexmark C770 and C772 supplies are designed to provide exceptional value reliability and outstanding print quality. These supplies offer an easy front loading design with a simple intuitive user interface. The only additional supply product necessary other than print cartridges is a simple waste toner container. – True: Accurate technology. Genuine quality. Environmental focus. It’s our nature. – Image: Crisp print. Professional documents. Great Impressions. Project your character. – Always: Dependable. Page after page. Year after year. Count on Lexmark.