Compatible Samsung ML-D4550B Black Toner Cartridge

The Samsung MLD4550B Compatible Black Toner Cartridge has a page yield of approx. 20,000 pgs @ average 5% page coverage ML-4050,ML-4050N,ML-4050ND, ML-4550,ML-4551,ML-4551N,ML-4551ND, ML-4551NDR, ML-D4550