Brother MFC-8440 B - Manual (Page 187)

TROUBLESHOOTING AND ROUTINE MAINTENANCE 12 - 26
Cleaning the printer
Caution
■
Do not use isopropyl alcohol to remove dirt from the control
panel. It may crack the panel.
■
Do not use isopropyl alcohol to clean the laser scanner window.
■
Do not touch the scanner window with your finger.
■
The drum unit contains toner, so handle it carefully. If toner
scatters and your hands or clothes get dirty, immediately wipe or
wash it off with cold water.
1
Turn the MFC power switch off and open the front cover.
2
Remove the drum unit and toner cartridge assembly.
WARNING
Just after you have used the MFC, some internal parts of the
machine are extremely HOT! When you open the front cover of the
MFC, never touch the shaded parts shown in the diagram below.
3
Gently clean the scanner window by wiping it with a clean soft
dry cloth. Do not use isoproply alcohol.
Front view
HOT!
Laser Scanner
Window