SC2xx: Exposure
424
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC240-01 D LD error: Bk
SC240-02 D LD error: Cy
SC240-03 D LD error: Ma
SC240-04 D LD error: Ye
• The LD current is more than the prescribed current during emitting light.
• LD driver cannot be initialized correctly.
• Disconnected LDB harness.
This SC is detected when:
• The machine starts up.
• The machine is copying.
• LDB harness connection error
• Deteriorated LD (LD broken)
• LDB (LD driver) failure
• LDB harness failure
1. Cycle the power off/on.
2. Check the harness between LDB and IPU.
3. Replace the LD unit.
4. Replace the harness between LDB and BiCU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC272-01 D LD driver communication error: Bk
SC272-02 D LD driver communication error: Cy
SC272-03 D LD driver communication error: Ma
SC272-04 D LD driver communication error: Ye
Power source for LD driver is incorrect.
This SC is detected when:
• The machine starts up.
• The machine returns from energy saver mode.
• Covers are closed.
• BiCU failure (LD5V Power error)
• LDB failure (LD drive error)
• LDB harness failure
• Interlock switch failure
1. Cycle the power off/on.
2. Check the harness between LDB and BiCU.
3. Replace the BiCU.
4. Replace the LD unit.
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