Review on EZ Ink (TM) High-Yield Compatible Toner Cartridge for Brother TN750 TN-750 TN720 TN-720 - Ideal for HL-5450DN HL-5470DW HL-6180DW MFC-8710DW MFC-8910DW MFC-8950DW (2-Pack, Black) by Duane Kerr

At first I thought my drum was bad because of this toner but after checking previous copies with my old toner I found my drum was bad after all. I think because it was about 22,000 pages. So I installed a new drum and then used this toner cartridge as a last resort and to my great surprise it prints just fine. I was actually in shock. But because the old drum was deteriorating, I lost a lot of toner when printing and ended up only printing about 3,000 copies when it should have been closer to 8,000. But I put in a second cartridge and it still prints fine. I hope I'm at 8000 copies but for now I'm giving it 4 stars because I just don't know.