Review on CMYBabee TN850 TN820 Compatible Toner Cartridge Replacement for Brother Printer - Fits HL-L5000D HL-L6250DW HL-L6400DW MFC-L6750DW DCP-L5600DN MFC-L6800DW - 4 Pack, Black by George Cochran

I have ordered several of these aftermarket toner cartridges. We use it in the Brother MFC-L5700DW. When the Brother DR-620 drum is new, it works for a while. Then, after about 1500 pages, the print quality starts to drop, you think the toner is empty and replace it with a new toner cartridge. But the problem is still the same, the imprint is faded in the middle and unreadable. So I bought a new drum unit and the problems keep repeating themselves. Don't skimp on cheap toner cartridges when you have to buy a new drum unit every few thousand pages. I went back to original Brother cartridges.