222
D
Laser Synchronizing Detection Error: [M]/[C]
The laser synchronizing detection signal for LDB [M]/[C] is not output after the LDB unit has
turned on while the polygon motor is rotating normally.
• Disconnected cable from the laser synchronizing detection unit or defective connection
•
Defective laser synchronizing detector
• Defective LDB
• Defective EGB
1. Check the connectors.
2. Replace the laser optics unit.
3. Replace the EGB.
240
D
LD error
The IPU (EGB) detects a problem at the LD unit.
• Worn-out LD
•
Disconnected or broken harness of the LD.
1. Replace the laser optics unit.
SC 3xx (Charge Error)
300
D
High voltage power output error
The measured voltage is not correct when the EGB measures each charge output (charge,
development, image transfer belt unit, and transfer unit).
• Disconnected or defective high voltage harness
•
Defective high voltage power supply
• Defective EGB
1. Check or replace the harnesses.
2. Replace the high voltage power supply board
3. Replace the EGB.
4. Replace the AIOs.
6. Troubleshooting
194
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