Sc4Xx: Image Processing - Ricoh D027 Service Manual

SC Tables
3.1.5 SERVICE CALL TABLES - 4

SC4xx: Image Processing - 2

No. Type
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.
400 D
1.
2.
1.
2.
No. Type
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
1.
2.
D027/D029 APPENDICES
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Dirty or defective ID sensor
Defective ID sensor shutter
Check the harness of the ID sensor.
Clean or replace the ID sensor.
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.
Replace the IOB.
Replace the image transfer belt unit.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Motor overload
Defective image transfer unit motor
Replace the image transfer belt unit.
Replace the IOB.
3-20 SM