Sc4Xx: Image Processing - 2 - Ricoh D104 Field Service Manual

6. Troubleshooting

SC4xx: Image Processing - 2

No. Type
400 D
6
582
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 SP3324-005 or less than the value (default:
3.5V) specified with SP3324-006.
• Dirty or defective ID sensor
• ID sensor detection surface dirty
1. Check the harness of the ID sensor.
2. Clean or replace the ID sensor.
• After replacing the ID sensor, input the ID sensor correction coefficient
with SP3362-013 and -016. For details, refer to "ID sensor board" in the
Replacement and Adjustment section.
3. Check the spring at the PTR unit contact lever. (See "PTR Unit Contact Motor"
in the chapter "Replacement and Adjustment".)
4. Replace the BCU.
5. Replace the ITB unit.