4-90
Troubleshooting
● Possible Cause: The temperature does not climb to the target value within set up time. Thermistor is
defective.
● Error message : System Error :#02-001 Please turn off then on.
● Troubleshooting method :
● Symptom : At Warm-up, this error has occurred. The machine does not work until power off/on.
● Code :02-001
Normal
Defective
Belt
Roller
1. Check if the fuser unit is installed in the machine
properly. Turn the machine then on.
* If the error persists, follow the next step.
2. Check if the fuser is overheated.
Take off the fuser. Check if the belt and roller is
defective by rotating the gear.
3. Check if the Thermistor is broken. (Thermistor :
Parts catalog P.65 No.53 item)
4. Check if the Thermistor is contaminated. Clean it
carefully.
* After following the above step 2,3,4, re-install the
fuser unit and turn the machine off then on.
If the error persists, follow the next step.
5. Update the latest FW.
* If the error persists, follow the next step.
6. Check if the thermistor connector on the Engine
Board is connected properly or harness is defective.
7. Remove the Rear Lower Cover and SMPS
Shield. And check if the harness on FDB is
connected properly.
* If the connection is OK, replace the FDB. Turn the
machine off then on again. If the problem persists,
replace the Engine board.
FDB
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