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 Optra C 534 Series, Lexmark C 524 Series, Lexmark C 534 Series, Lexmark Optra C 520 N, Lexmark C 532, Lexmark C 520 N, Lexmark C 530, Lexmark C 520, Lexmark C 534, Lexmark C 522 Series, Lexmark Optra C 530, Lexmark C 522, Lexmark C 532 Series, Lexmark C 534 DTN, Lexmark C 534 N, Lexmark Optra C 534 N, Lexmark Optra C 534 DN, Lexmark C 524, Lexmark C 524 DTN, Lexmark C 532 DN, Lexmark Optra C 530 DN, Lexmark Optra C 524 N, Lexmark C 524 N,…