Brother MFC-9420CN - Manual (Page 146)

Troubleshooting and routine maintenance
C - 21
C
Cleaning the outside of the
machine
Clean the outside of the machine as
follows:
1
Pull the paper tray completely out of the
machine.
2
Wipe the outside of the machine with a
soft cloth to remove dust.
3
Remove anything that is stuck inside the
paper tray.
4
Wipe the inside and the outside of the
paper tray with a soft cloth to remove
dust.
5
Re-load the paper and put the paper tray
firmly back in the machine.
CAUTION
■
Use neutral detergents. Cleaning with
volatile liquids such as thinner or
benzine will damage the outside
surface of the machine.
■
Do not use cleaning materials that
contain ammonia.
■
Do not use isopropyl alcohol to remove
dirt from the control panel. It may crack
the panel.