Brother 9840CDW - Color Laser - All-in-One User Manual page 178

c
Pull out the MP tray (1) and unfold the
MP tray support flap (2).
1
d
Put a blank sheet of A4 or Letter sized
paper in the MP tray.
e
While pressing and holding down
Clear/Back press d until
DRUM CLEANING is displayed on the
LCD.
f
Press Black Start or Color Start. The
paper will feed into the machine to start
the drum cleaning.
162
2
g
The following message appears on the
LCD when the machine has finished
cleaning.
DRUM CLEANING
COMPLETED
h
Press Stop/Exit so that the machine
returns to the Ready state.
i
Try to print again. If this problem still
remains, repeat steps c to h several
times.
If the problem still remains after
repeating step c to h several times, go
to step j.
j
Turn off the machine's power switch.
Unplug the telephone line cord first,
disconnect all cables, and then unplug
the power cord from the AC power
outlet.
k
Press the front cover release button and
then open the front cover.