Review on Aztech Compatible Drum Unit Replacement for Brother DR820 DR-820 DR 820 for HL-L6200DW MFC-L5850DW MFC-L5900DW MFC-L6700DW MFC-L5800DW HLL6200DW HL-L5200DW HLL5100DN Printer (Black, Pack of 2) by Bob Fasho

I am a mobile notary. So I print out loan documents. I tracked how much I was getting out of each used toner cartridge. I can't see if I have 8000 pages or not because I'm printing so many of the allowed size. But I consistently printed 6,000 pages with each toner cartridge. Considering the amount of printing, I print in the allowable size. I felt like I got my money's worth. Print quality has never been an issue. And I don't see any cleanliness issues in my printer. I will definitely buy them again.