Canon imagePRESS C1+ Reference Manual page 582

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8-88
Service Call Message
Press [Yes].
If you do not want to turn the Limited Functions Mode 'On', press [No].
A message prompting you press [Shutdown], and turn the main power OFF and ON appears.
Press [Shutdown]. The main power switch of the machine switches to
the " " side automatically.
Wait at least 10 seconds before turning the main power switch to the
"I" side.
( I side)
( side)