Brother MFC-7860: How to Reset Drum Counter - Print.Save.Repeat.
Compatible Toner Reset Gear Replacement for Brother TN-450, TN-420 – New Era Toner
I still receive the error message "Replace Drum", "Drum End Soon", "Drum Near End", or "Drum Stop" after I replace the drum unit with a new one. | Brother
Replace Toner Brother MFC 7360 solve 100%
Resolve Replace Drum Message Brother Drum Unit
How to Make Your Brother Printer Accept a Toner Cartridge - Instructables