Brother MFC4550 PLUS - Manual (Page 154)

WARNING
• Do not use isopropyl alcohol to clean the scanner window or the toner
sensor.
• Do not touch the scanner window with your finger.
• Handle the drum unit carefully as it contains toner. If toner scatters and
your hands or clothes get dirty, immediately wipe or wash it off with
cold water.
Electric Terminal
Gears Scanner Window
WARNING ----------------------------------
Just after you have used the MFC,
some internal parts of the MFC
are extremely
Hot! When you open
the top cover of the MFC, never
touch the shaded parts shown in
the diagram to the left.
▲ Inside the MFC
Shaded Parts are HOT!
Cleaning the Drum Unit
NOTE: We recommend that you place the drum unit on a drop cloth or large piece
of disposable paper to avoid spilling and scattering the toner.
1. Turn the drum unit upside down carefully.
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