Ricoh MPC 2800 AT-C2, Field Service Manual, Page: 400 / 856

SC1xx: Scanning
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
101 D
Exposure lamp error
The peak white level is less than 64/255 digits (8 bits) when scanning the shading
plate.
• Exposure lamp defective
• Lamp stabilizer defective
• Exposure lamp connector defective
• Standard white plate dirty
• Scanner mirror or scanner lens out of position or dirty
1. Check and clean the scanner mirror(s) and scanner lens.
2. Check and clean the shading plate.
3. Replace the exposure lamp.
4. Replace the lamp stabilizer.
5. Replace the scanner mirror(s) or scanner lens.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
120 D
Scanner home position error 1
The scanner home position sensor does not detect the “OFF” condition during
operation.
• Scanner motor driver defective
• Scanner motor defective
• Harness between SIO board and scanner motor disconnected
• Scanner HP sensor defective
• Harness between SIO and HP sensor disconnected
1. Check the cable connection between the SIO board and scanner motor.
2. Check the cable connection between the SIO and HP sensor.
3. Replace the scanner motor.
4. Replace the HP sensor.
3. Appendix: Service Call Conditions
44
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