Up to 30000 pages black, 20000 pages colour.Compatible Printers: OKI MC 562 DNW, OKI MC 352 DN, OKI C 331 DN, OKI C 321 DN, OKI C 511 DN, OKI MC 332 DN, OKI C 301 DN, OKI C 531 DN, OKI MC 362 DN, OKI MC 562 DN, OKI MC 342 DN, OKI MC 342 DNW, OKI MC 340 Series, OKI MC 363 N, OKI MC 363 DN, OKI C 332 DN, OKI MC 363 DNW, OKI C 332 DNw