Ricoh D037 Service Manual page 444

SC Tables
No. Type
1.
2.
3.
No. Type
Paper tray feed motor lock (optional Paper Tray Unit)
A motor lock signal is not detected for more than 1.5 s or the lock signal
is not detected for more than 1.0 s during rotation.
506 B
1.
2.
3.
No. Type
By-pass bottom plate error
The signal from the by-pass tray HP sensor does not change for 1.0
second after the by-pass motor has rotated counterclockwise.
If this condition occurs three consecutive times, the SC is generated.
508 B
1.
2.
3.
D037/D038/D040/D041
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Check or replace the harness.
Replace the tray lift motor.
Replace the BCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
An obstruction (jammed paper, paper scraps, etc.) has blocked the
feed motor drive and caused an overload.
Paper tray feed motor connection loose, disconnected, or
damaged
Paper tray feed motor defective
Check or replace the harness.
Replace the feed motor.
Replace the BCU
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Disconnect or defective harness of the by-pass motor
Defective by-pass motor
Disconnect or defective harness of the by-pass tray HP sensor
Defective by-pass tray HP sensor
Check or replace the harness.
Replace the by-pass motor.
Replace the by-pass tray HP sensor.
4-22 SM Appendix