Toner cartridge is designed for use with Lexmark T650DN, T650DTN, T650N, T652DN, T652DTN, T652N, T654DN, T654DTN, T654N and T656DNE. 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.