Ricoh B230 Service Manual page 273

No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
ID sensor adjustment error
When the Vsg error counter reaches "3", the machine detects "SC400".
The Vsg error counter counts "1" when the Vsg detected by ID sensor is
more than the value (default: 4.5V) specified with SP3234-005 or less
than the value (default: 3.5V) specified with SP SP3234-006.
Dirty or defective ID sensor
Defective ID sensor shutter
400 D
1. Check the harness of the ID sensor.
2. Clean or replace the ID sensor.
3. Replace the IOB.
4. Replace the image transfer belt unit.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
Image transfer unit motor error
The motor LOCK signal is not detected for more than two seconds
while the motor START signal is on.
441 D
Motor overload
Defective image transfer unit motor
1. Replace the image transfer belt unit.
2. Replace the IOB.
SM
After replacing the ID sensor, input the ID sensor correction
coefficient with SP3362-013 to -018. For details, refer to "ID
sensor board" in the Replacement and Adjustment section.
4-33 B230/B237