Return program toner cartridge is designed for label applications and for use in Lexmark T650DN, T650DTN, T650N, T652DN, T652DTN, T652N, T654DN, T654DTN, T654N and T656DNE. Lexmark Return Program Cartridges are sold at a discount, vs. 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. TAA-compliant cartridge yields approximately 7,000 pages.