SC1xx: Scanning
D0CA/D0C9/D0C8/D0CB 6-12 SM
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC144-00 D SBU Communication Error
The machine cannot detect that the SBU (PCB11) is connected.
• Defective scanner carriage
• Defective BiCU (PCB1)
• Loose connector or damaged harness
Check if the SC occurs by turning the power OFF then ON. If the SC occurs
again, do the following steps. Check if the SC reoccurs by cycling the power
after each step.
1. Reconnect the following connectors:
• Scanner Carriage - BiCU harness (FFC)
2. Replace the scanner carriage.
3. Replace the BiCU (PCB1).
4. Replace the following harness:
• Scanner Carriage - BiCU (PCB1) (FFC)
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC151-00 D Black Level Correction Error: Rear Side
The automatic adjustment has failed to correct the black level (rear side) to
the permissible range.
• Loose connector
• Defective CIS (S21)
• Defective BiCU (PCB1)
• Damaged harness (FFC)
Check if the SC occurs by turning the power OFF then ON. If the SC occurs
again, do the following steps. Check if the SC reoccurs by cycling the power
after each step.
1. Reconnect the following connectors:
• CIS (S21) - BiCU harness (FFC)
2. Replace the CIS (S21).
3. Replace the BiCU (PCB1).
4. Replace the harness (FFC).
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