Black Drum Cartridge (Image Drum) 30,000 pages For: C822/831/841Compatible Printers: OKI C 831 CDTN, OKI C 841 CDTN, OKI C 822 DN, OKI C 841 DN, OKI C 831 DN, OKI C 841 N, OKI C 822 N, OKI C 822 CDTN, OKI C 831 N, OKI C 831 DM, OKI C 822 Series, OKI C 831 Series
