SC2xx: Exposure
D0CA/D0C9/D0C8/D0CB 6-16 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
• Incorrect AC voltage
1. Cycle the power OFF/ON.
2. Check the harness between Laser unit and BiCU (PCB1).
3. Check CN300 (a connector with three pins) for the Polygon Mirror Motor
(M5,M6) from the PSU (PCB16)(PCB17).
There is no problem if the multimeter indicates 24±2V.
4. Replace the Laser unit (Polygon Mirror Motor (M5,M6)).
5. Replace the harness between the Laser unit and BiCU (PCB1).
6. Replace the BiCU (PCB1)..
7. Replace the PSU (PCB16)(PCB17).
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC204-01 D Polygon Motor Error 0: XSCRDY Signal Error: K, C
SC204-03 D Polygon Motor Error 1: XSCRDY Signal Error: M, Y
Polygon mirror Motor (M5,M6) cannot rotate correctly.
This SC is detected when the Polygon Mirror Motor (M5,M6) is deactivated.
• Polygon Mirror Motor failure
• Motor drive error
• Polygon Mirror Motor harness is defective, disconnected, or
short-circuited
• BiCU failure (Incorrect polygon motor control signal, damaged Laser
ASIC)
• Defective PSU (PCB16)(PCB17) or power supply part for polygon motor
1. Cycle the power OFF/ON.
2. Check the harness between Laser unit and BiCU (PCB1).
3. Check CN300 (a connector with three pins) for the Polygon Mirror Motor
(M5,M6) from the PSU (PCB16)(PCB17).
There is no problem if the multi meter indicates 24±2V.
4. Replace the Laser unit (Polygon Mirror Motor (M5,M6)).
5. Replace the harness between the Laser unit and BiCU (PCB1).
6. Replace the BiCU (PCB1)..
7. Replace the PSU (PCB16)(PCB17).
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