Brother MFC-9870 All in One Printer User Manual


 
139
TROUBLESHOOTING AND MAINTENANCE
6
Install the new toner cartridge into the drum unit until it clicks into
place.
Drum Unit
Toner Cartridge
7
Clean the primary corona wire inside the drum unit by gently
sliding the blue tab from right to left several times. Return the blue
tab to the home position before reinstalling the drum unit assembly.
Home Position ( )
Tab
Corona Wire
8
Reinstall the drum unit into the machine and close the front cover.