Canon Color imageRunner C3220 Reference Manual page 516

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8-86 Service Call Message
Turn OFF the main power switch. Wait at least 10 seconds
before turning the main power switch back ON.
OFF
( side)
If the machine still does not operate normally, follow the
procedure below, then contact your local authorized Canon
dealer.
❑
Turn OFF the main power.
❑
Disconnect the power plug.
ON
( I side)
ON
( I side)
OFF
( side)