These printers use the TFC425UC cartridge:
Click On a Printer to View it's Cartridges
          Toshiba e STUDIO 2520 AC
          Toshiba e STUDIO 2525 AC
          Toshiba e STUDIO 3025 AC
          Toshiba e STUDIO 3525 AC
          Toshiba e STUDIO 3525 ACG
          Toshiba e STUDIO 4525 AC
          Toshiba e STUDIO 4525 ACG
          Toshiba e STUDIO 5525 AC
          Toshiba e STUDIO 5525 ACG
          Toshiba e STUDIO 6525 AC