Canon Color imageCLASS MF8380Cdw Basic Operation Manual page 172

WARNING
If the machine makes strange noises or emits smoke or
an odd odor
Turn OFF the power switch immediately, disconnect the
power cord, and contact the Canon Customer Care Center.
Do not attempt to disassemble or repair the machine
yourself.
IMPORTANT
If you attempt to fix the machine yourself
It may void the limited warranty.
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