Toshiba T-6000 Premium Compatible High Value Black Copier Toner Toshiba T-6000 compatible Black Copier Toner provides clear sharp prints to satisfy all your printing and copying needs. Works with the Toshiba E-STUDIO 520, E-STUDIO 600, E-STUDIO 620, E-STUDIO 720, E-STUDIO 850 Expected yield of OEM + pages based on a 5% coverage. 100% Customer Satisfaction Guarantee offered on all our Premium Compatible products exclusively from the The Factory Depot.