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. 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.Yield: Up to 15,000 pages based on approximately 5% coverage- Supplies The Lexmark C750 supplies are designed to provide exceptional value, reliability and outstanding print quality. C750 supplies offer an easy front loading design with a simple, intuitive user interface. In addition, Lexmark has streamlined the number of necessary supplies products from prior offerings. With the C750, the only additional supply product necessary beyond toner cartridges is a simple waste toner container.- Papers & Transparencies Both have been engineered for optimal use in the Lexmark C750 and C910. Thanks to its brightness & whiteness, the Glossy Paper is perfect for customers printing their own brochures, catalogues and flyers, They will save money printing their deliverables on demand instead of keeping copies in inventory. Printable both sides.- The Color Laser Transparency is ideal for professional presentations. It is printable on either side for simplified loading.