Replace the main board.
Check CN23 of the main board.
Is the conector inserted
right ways?
Fuser Error eliminated?
END
Thermostat is open due to the heat etc.
-> Replace the thermostat
Measure the resistance at the both ends
of AC(Con no.2 of the SMPS board)
Line with covers open
Remove the covers
NO
NO
NO
YES
YES
YES
Check CN26 of the main board.
Is the conector inserted
right ways?
Re-assemble the connector.
Re-assemble the connector.
Less than 10W?
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