Toner cartridges are designed for use with the Lexmark Laser Printers: MX611DE, MX511DE, MX410DE, MX611DHE, MX610DE, MX511DHE, MX510DE, MX310DN, MX511DT. High Yield: 10,000.
Extra high-yield toner cartridge is designed for use in Lexmark C544, C544DN, C544DTN, C544DW, C544N and X544 Series. 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. Approximate yield: 6000 pages.