These printers use the 42918107 cartridge:
Click On a Printer to View it's Cartridges
          Okidata C 9600
          Okidata C 9600 HDN
          Okidata C 9600 HN
          Okidata C 9600 N
          Okidata C 9650
          Okidata C 9650 Color
          Okidata C 9650 HN
          Okidata C 9650 DN
          Okidata C 9650 HDN
          Okidata C 9650 N
          Okidata C 9655 DN
          Okidata C 9655 HDN
          Okidata C 9655 HDTN
          Okidata C 9655 N
          Okidata C 9800
          Okidata C 9800 HDN
          Okidata C 9800 HN