Toshiba T5018U Black Toner Cartridge is designed to perform in the Toshiba e-Studio 2018A, e-Studio 2518A, e-Studio 3018A, e-Studio 3518A, e-Studio 4518A, e-Studio 5018A
Toshiba T7200 Black Toner Cartridge is designed to perform in the Toshiba e-Studio 523, e-Studio 523T, e-Studio 603, e-Studio 603T, e-Studio 723, e-Studio 723T, e-Studio 853