These printers use the 823-4 cartridge:
Click On a Printer to View it's Cartridges
          PitneyBowes-Imagistics 3500
          PitneyBowes-Imagistics 3500 MFP
          PitneyBowes-Imagistics 5000
          PitneyBowes-Imagistics 5000 MFP
          PitneyBowes-Imagistics DL 170
          Imagistics DL 170
          NCR 5000
          Tally-Genicom 3500