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Fuser Error
Measure the resistance
at the both ends of AC
Line with covers open
Less than 10W?
YES
Remove the Rear covers
AC is being supplied?
YES
The voltage
of pin #5 of U5
on the engine board
is about 2.7V when
printing?
YES
END
Samsung Electronics
NO
Thermostat is open due to the heat etc.
-> Replace the thermostat
NO
Re-assemble the top
cover and close it
Thermistor, connecting point or engine
NO
board defect -> Repair/replace the
component/board
Maintenance & Troubleshooting
Check the voltage of pin#6
of U5,if it is about 2.3
it's OK if not check the
CON4 in Power B'd
4-25
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