20,000 A4 pages @ 3 pages/job (applicable to all image drums for this product)Compatible Printers: OKI C 5650 DN, OKI C 5650, OKI C 5750 DN, OKI C 5750, OKI C 5750 N, OKI C 5650 N, OKI C 5650 Series, OKI C 5750 Series