Toshiba toner cartridge for use in Toshiba e-STUDIO 2050C/2051C/2550C/2551CCompatible Printers: Toshiba E-Studio 2051 C, Toshiba E-Studio 2050 C, Toshiba E-Studio 2550 C, Toshiba E-Studio 2050 C SE, Toshiba E-Studio 2550 C SE, Toshiba E-Studio 2551 C