These printers use the 766-8 cartridge:
Click On a Printer to View it's Cartridges
          PitneyBowes-Imagistics DM 800
          PitneyBowes-Imagistics DM 800 I
          PitneyBowes-Imagistics DM 825 MailING System
          PitneyBowes-Imagistics DM 875 MailING System
          PitneyBowes-Imagistics DM 900
          PitneyBowes-Imagistics DM 925 MailING System
          PitneyBowes-Imagistics DM 1000
          PitneyBowes-Imagistics DM 1100 MailING System
          PitneyBowes DM 800
          PitneyBowes DM 800 I
          PitneyBowes DM 825 MailING System
          PitneyBowes DM 875 MailING System
          PitneyBowes DM 900
          PitneyBowes DM 925 MailING System
          PitneyBowes DM 1000
          PitneyBowes DM 1100 MailING System