Brother MFC-7420 All in One Printer User Manual


 
Chapter 11
11 - 27
4
Gently rock the toner cartridge from side
to side five or six times to distribute the
toner evenly inside the cartridge.
5
Remove the protective cover.
6
Insert the new toner cartridge in the
drum unit until it clicks into place. If you
put it in properly, the lock lever will lift
automatically.
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 and
toner cartridge assembly.
8
Install the drum unit and toner cartridge
assembly in the MFC.
9
Close the front cover.