SC Tables
D037/D038/D040/D041 4-22 SM Appendix
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
1. Check or replace the harness.
2. Replace the tray lift motor.
3. Replace the BCU.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
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.
 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
506 B
1. Check or replace the harness.
2. Replace the feed motor.
3. Replace the BCU
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
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.
 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
508 B
1. Check or replace the harness.
2. Replace the by-pass motor.
3. Replace the by-pass tray HP sensor.
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