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
Amazon.com: greencycle 1 Pack TN350 TN-350 Black Toner Cartridge Replacement Compatible for Brother MFC-7420 MFC-7820n DCP-7020 Printers : Office Products
Brother Mfc 7420 Drum reset - YouTube
TN350 Toner Reset Instruction | 123ink's Blog
Replacing The Drum Unit (Dr-350) - Brother DCP-7020 User Manual [Page 62] | ManualsLib
Resetting "Toner Life End" Error Message on Brother Printers | Ink & Toner Solutions