These printers use the T-3520 cartridge:

Toshiba e STUDIO 350

Toshiba e STUDIO 352

Toshiba e STUDIO 353

Toshiba e STUDIO 450

Toshiba e STUDIO 452

Toshiba e STUDIO 453

Toshiba ES 350

Toshiba ES 352

Toshiba ES 450

Toshiba ES 452

Sharp e Studio 352