Samsung ML 1710 Service Manual - Page 77

Malfunction

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T RO U B L E S H O OT I N G 7.3 Malfunction 7.3.1 All LEDs blinking (Fuser Error) • Description 1. All the lamps on the operator panel blink. 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 1. Check if the thermostat, AC wire and Heat Lamp is open. Solution 1. If the thermostat is open replace the fuser and 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. 5. Replace Fuser. 7.3.2 All LEDs blinking (Scan Error) • Description 1. All lamps on the operator panel blink. Check and Cause DCU Mode : Perform DCU diagnostic code 05. If the DCU error code 95 is displayed, replace LSU. Replace LSU. Solution If you cannot solve the problem after you replace LSU, replace the main board. Service Manual 7-12 Samsung Electronics

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7-12
TROUBLESHOOTING
Samsung Electronics
Service Manual
7.3 Malfunction
7.3.1 All LEDs blinking (Fuser Error)
• Description
1. All the lamps on the operator panel blink.
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
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.
1. If the thermostat is open replace the fuser and
check following items.
2. If the thermistor sensor device is located deep in the
sponge, replace the fuser.
3. Check if the circuit of overheat mode works properly.
4. Run DCU mode : Perform DCU diagnostic code 10.
5. Replace Fuser.
7.3.2
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
error code 95 is displayed, replace LSU.
Replace LSU.
If you cannot solve the problem after you replace LSU,
replace the main board.