Ricoh MPC 2800 AT-C2, Field Service Manual, Page: 401 / 856

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
121 D
Scanner home position error 2
The scanner home position sensor does not detect the “ON” 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.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
141 D
Black level detection error
The black level cannot be adjusted within the target value during the zero clamp.
• Harness disconnected
• Defective SBU
1. Check the cable connection
2. Replace the SBU.
SC Tables
45
3