Lexmark Return Program Cartridges 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.Compatible Printers: Lexmark C 544 Series, Lexmark X 544 DW, Lexmark Optra C 544 DTN, Lexmark Optra C 544 N, Lexmark X 544 DTN, Lexmark X 544 N, Lexmark C 544 DTN, Lexmark X 544 DN, Lexmark C 544 DN, Lexmark Optra C 544 DN, Lexmark C 544 N, Lexmark C 544 DW, Lexmark Optra C 544 DW