1. Check if the thermostat,
AC wire and Heat Lamp is open.
2. Check if the thermistor
sensor is in place.
3. Check if the heat lamp
works properly.
4. Check if the overheat
circuit works properly.
5. The fuser gear is defective
due to melting away.
If the thermostat is open replace
the fuser and check following items.
Check if the circuit of overheat
mode works properly.
Run DCU mode : Perform DCU
diagnostic code 10.
Replace Fuser.
If the thermistor sensor device is
located deep in the sponge,
replace the fuser.
• Description 1. Red LED on (On line/Error LED)
2. Gear of the fuser does not work and breaks away melt away.
When printing, motor breaks away from its place due to defective fuser gear.
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