Ricoh MPC 2800 AT-C2 Mode D'emploi page 414

3. Appendix: Service Call Conditions
No. Type
3
No. Type
144 D
No. Type
161 D
001
002 D
46
Details (Symptom, Possible Cause, Troubleshooting Procedures)
1. Clean the exposure glass, white plate, mirrors, and lens.
2. Check if the exposure lamp is lit during initialization.
3. Check the harness connection between SBU and BICU.
4. Replace the exposure lamp.
5. Replace the scanner motor.
6. Replace the SBU board.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SBU communication error
The SBU connection cannot be detected at power on or recovery from the energy
save mode.
• Defective SBU
• Defective harness
• Defective detection port on the BICU
1. Replace the harness.
2. Replace the SBU.
3. Replace the BICU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
IPU error
The error result of self-diagnostic by the ASIC on the BICU is detected.
• Defective BICU
• Defective connection between BICU and SBU
1. Check the connection between BICU and SBU.
2. Replace the BICU.
The machine detects an error during an access to the Ri.
• Defective BICU board
Replace the BICU board.