Brother MFC 9840CDW - Manual (Page 189)

Troubleshooting and routine maintenance
173
C
Replacing the toner cartridges
C
HOT SURFACE
After you have just used the machine, some
internal parts of the machine will be
extremely hot. When you open the front or
back cover of the machine, DO NOT touch
the shaded parts shown in the illustration.
a
Press the front cover release button and
then open the front cover.
b
Hold the green handle of the drum unit.
Lift the drum unit up and then pull it out
until it stops.
c
Hold the handle of the toner cartridge
and pull it out of the drum unit. Repeat
this for all the toner cartridges.