Return Program toner cartridge is essential to Lexmark Print System performance. Unison toner consistently delivers outstanding image quality, ensures long-life system reliability & promotes superior sustainability – all in an innovative, shake-free print system. Cartridge is compatible with Lexmark CX820dtfe, CX825dte, CX825dtfe, CX860dte, CX860dtfe, CX860de, CX825de, CX820de, CS820dte, CS820dtfe & CS820de. Genuine Lexmark supplies are engineered to work best together with your Lexmark printer, delivering excellent print quality from the first page to the last. Return Program cartridge is a patented device that is sold at a special price subject to the restriction that the cartridge may be used only once. Following the initial use, return the cartridge only to Lexmark for remanufacture & / or recycling. Keep upfront costs low & quality high with Genuine Lexmark cartridges. Perfect for low-volume printing, standard-yield cartridge yields approximately 8,000 pages.