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 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.Lexmark cartridge collection program includes various methods of return and sponsors unique collection partnerships around the world. Collection programs are always free to the consumer and are designed to be easy to use. Country-specific instructions and shipping labels are available online. Empty cartridges may also be returned through participating Lexmark authorized supplies resellers.