These printers use the 44992407 cartridge:
Click On a Printer to View it's Cartridges
          Okidata B 401
          Okidata B 401 D
          Okidata B 401 DN
          Okidata MB 441
          Okidata MB 441 DN
          Okidata MB 451
          Okidata MB 451 DN
          Okidata MB 451 W
          Okidata MB 451 W MFP