Troubleshooting

4-4 The cause and solution of the malfunction

4-4-1 All LEDs blinking (Fuser Error)

1. All the lamps on the operator panel blink.

• Description 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.

 

Check and Cause

 

Solution

1.

Check if the thermostat, AC wire and Heat Lamp is

1.

If the thermostat is open replace the fuser and

 

open.

 

check following items.

2.

Check if the thermistor sensor is in place.

2.

If the thermistor sensor device is located deep in the

 

 

 

sponge, replace the fuser.

3. Check if the heat lamp works properly.

3. Check if the circuit of overheat mode works properly.

4. Check if the overheat circuit works properly.

4. Run DCU mode : Perform DCU diagnostic code 10.

5. The fuser gear is defective due to melting away.

4-4-2 All LEDs blinking (Scan Error)

• Description

1. All lamps on the operator panel blink.

 

 

 

 

 

Check and Cause

Solution

 

 

DCU Mode : Perform DCU diagnostic code 05. If the DCU

Replace LSU.

error code 95 is displayed, replace LSU.

 

 

 

If you cannot solve the problem after you replace LSU,

 

 

replace the main board.

 

 

 

Samsung Electronics

4-17

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Samsung ML-1651N Cause and solution of the malfunction, All LEDs blinking Fuser Error, All LEDs blinking Scan Error
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