These printers use the 44574701 cartridge:
Click On a Printer to View it's Cartridges
          Okidata B 411 D
          Okidata B 411 DN
          Okidata B 431 D
          Okidata B 431 DN
          Okidata MB 461 MFP
          Okidata MB 471 DNW
          Okidata MB 471 MFP
          Okidata MB 471 W MFP
          Okidata MB 491
          Okidata MB 491 +LP
          Okidata MB 492 DN