The OKI B731dnw uses black toner with part number 45488801, a standard-yield cartridge rated for about 18,000 pages. The compatible toner here replaces the OKI 45488801. The same toner also fits the OKI B721dn and B731dn. Same-day shipping on most orders.
Reg Price $199.99
$139.99
0.8¢ per page