Review on Brother Genuine TN850 2-Pack High Yield Black Toner Cartridge - Approx. 8,000 Pages per Cartridge by Joey Richardson

This is probably the best toner for Brother printers. Print perfectly on any type of paper. However, it will not be 8000 pages long as announced. You need to know how to RESET the toner replacement notification on your printer. Otherwise, the printer automatically disables toner use after 4,000 pages have been printed. However, the price is so high that I tried some aftermarket toners but didn't get the same quality. So I only use this toner for important documents.