Toshiba E-Studio 3500C Cyan Toner - 21,000 pages. Designed for Estudio 2500c, 3500C, 3510CCompatible Printers: Toshiba E-Studio 3510 C PRO, Toshiba E-Studio 3510 C, Toshiba E-Studio 3500 C PRO, Toshiba E-Studio 2500 C PRO, Toshiba E-Studio 3500 C, Toshiba E-Studio 2500 C