No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
503-0
2
B
Tray 3 error (Paper Feed Unit or LCT)
This SC is generated if the following condition occurs 3 consecutive times.
For the paper feed unit:
• When the tray lowers, the tray lift sensor does not go off within 1.5 sec.
For the LCT:
• When the main switch is turned on or when the LCT is set, if the end fence is
not in the home position (home position sensor ON), the tray lift motor stops.
• If the upper limit does not go off for 1.5 seconds even the tray lift motor turns
on to lower the tray after the upper limit has been detected at power on.
For the paper feed unit:
• Defective tray lift motor or connector disconnection
• Defective lift sensor or connector disconnection
For the LCT:
• Defective stack transport clutch or connector disconnection
• Defective tray motor or connector disconnection
• Defective end fence home position sensor or connector disconnection
1. Check the cable connections.
2. Check and/or replace the defective component.
3. Appendix: Service Call Conditions
64
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