Sc4Xx: Image Processing - 2 - Ricoh D037 Service Manual

SC Tables
4.1.5 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
ITB 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.
No. Type
442 D ITB contact motor error
The ITB contact sensor does not detect the movement of actuator at
D037/D038/D040/D041
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Dirty or defective ID sensor
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 and -016. For details, refer to "ID
sensor board" in the Replacement and Adjustment section.
Replace the BCU.
Replace the ITB unit.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Motor overload
Defective ITB unit motor
Replace the ITB unit.
Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
4-18 SM Appendix