Our compatible Okidata B431 (44574901) High Yield Replacement Toner cartridges are compatible with the Okidata B431d, B431dn, MB461 MFP, MB471, MB471W. Laser Tek Services® Replacement cartridges offer an excellent choice over expensive brand name Toner cartridges for your printer. They are professionally manufactured to produce the best quality prints for your Okidata Printer. All of our replacement cartridges have new internal parts including OPC drums, Smart Chips, wiper blades, and a fresh supply of toner for premium performance giving you quality, clean and clear prints page after page. As always, all of our cartridges come with a 100% Satisfaction Guarantee! This Package contains 1 Black 44574901 Replacement Toner Cartridge with an approximate page yield of 10,000 pages per cartridge.