Brother 9840CDW - Color Laser - All-in-One - Cleaning the Laser Scanner Windows

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Cleaning the laser scanner
windows C
CAUTION
DO NOT use isopropyl alcohol to clean the
laser scanner windows.
DO NOT touch the laser scanner windows
with your fingers.
a 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.
b Press the front cover release button and
then open the front cover.
c Hold the green handle of the drum unit.
Lift the drum unit up and then pull it out
until it stops.