Ricoh OR-C1 Field Service Manual page 412

3. Appendix: Service Call Conditions
No. Type
3
355 C
No. Type
389 C
54
Details (Symptom, Possible Cause, Troubleshooting Procedures)
ID sensor error
• One of the following conditions occurred when the ID sensor pattern was
calibrated during printing:
Vsp > 2.5V
Vsg < 2.5V
Vsp = 0V
Vsg = 0V
• The following conditions occurred simultaneously when the ID sensor pattern
was calibrated during printing:
Vsg = 5V
PWM = 0 (LED current drop)
• Error occurred during automatic adjustment of Vsg:
Vsg output did not attain 4V, even with PWM = 1023 (maximum current for
LED)
Vsg output was greater than 4V, even with PWM=1 (no current for the LED)
• ID sensor dirty or defective
• ID sensor harness disconnected, or connector damaged
• BCU defective
• High voltage power supply board (power pack) defective
• Scanning system or image creation system malfunction
1. Replace the ID sensor harness.
2. Replace the ID sensor.
3. Replace the harness of the high voltage power supply board (power pack).
4. Replace the harness of the BCU.
5. Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
TD sensor error 1
TD sensor output was less than 0.5V, or more than 0.5V 10 times in succession. If
the fax unit is installed, this SC is issued immediately. If the fax unit is not installed,
this SC is issued after the prescribed number of copies has printed.