Products › Brother TN620 / TN-620 Black Toner Cartridge Image 1 of 1 Brother TN620 / TN-620 Black Toner Cartridge $0.00 Genuine Brother TN620 / TN-620 Black Toner Cartridge, rated for approx. 3,000 pages. Add To Cart Added! Genuine Brother TN620 / TN-620 Black Toner Cartridge, rated for approx. 3,000 pages.