Ricoh D027 Service Manual page 3

SC Tables
No. Type
2.
3.
4.
No. Type
Scanner home position error 2
The scanner home position sensor does not detect the "ON" condition
during operation.
121 D
1.
2.
3.
4.
No. Type
Black level detection error
The black level cannot be adjusted within the target value during the
zero clamp.
141 D
1.
2.
D027/D029 APPENDICES
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Check the cable connection between the SIO and HP sensor.
Replace the scanner motor.
Replace the HP sensor.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
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
Check the cable connection between the SIO board and scanner
motor.
Check the cable connection between the SIO and HP sensor.
Replace the scanner motor.
Replace the HP sensor.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Harness disconnected
Defective SBU
Check the cable connection
Replace the SBU.
3-6 SM