Ricoh B230 Service Manual page 254

No. Type
1.
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
-001: After the home position detection
-002: After the AGC
The black level cannot be adjusted within the target value during the
141 D
zero clamp.
1.
B230/B237
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Check the cable connection between the SIO board and scanner
motor.
Check the cable connection between the SBU 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 SBU and HP sensor disconnected
Check the cable connection between the SIO board and scanner
motor.
Check the cable connection between the SBU and HP sensor.
Replace the scanner motor.
Replace the HP sensor.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Defective SBU
Replace the SBU.
4-14 SM