1.SC Codes
156
2. Check the connector of the fusing motor and the harness of the IOB connector (connector floating,
or disconnected)
3. Replace the fusing motor (BLM9).
4. Replace the harness of the fusing motor. (harness damaged, or welding is defective)
5. Replace the IOB.
6. Check whether LED5 of the BiCU is lit.
If so, replace the PSU.
SC521-00
Error Name
Exit Motor Error
Pattern
D
Error Condition
Exit motor error is detected.
Major Cause
ï‚· There is excessive torque on the exit unit (such as overload due to locked bearing).
ï‚· Exit motor connector is disconnected.
ï‚· Exit motor (BLM7) is defective.
ï‚· Harness is broken.
ï‚· IOB is defective.
Solution
1. Check if the exit unit is overloaded (foreign objects in the unit, bearing locked or stuck).
2. Check the connector of the exit motor and the harness of the IOB connector (connector floating or
disconnected)
3. Replace the exit motor (BLM7).
4. Replace the harness of the exit motor (BLM7).
5. Replace the IOB.
SC522-00
Error Name
Heat Pipe Motor Error
Pattern
D