These printers use the TFC425UC cartridge:
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