Ricoh D027 Service Manual page 23

SC Tables
No. Type
For the paper feed unit:
For the LCT:
1.
2.
No. Type
503-02 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:
For the LCT:
For the paper feed unit:
D027/D029 APPENDICES
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC 503-01 occurs if the upper or lower limit is not detected within 8
seconds when the tray lift motor is turned on to lift or lower the tray.
Defective tray lift motor or connector disconnection
Defective lift sensor or connector disconnection
Defective stack transport clutch or connector disconnection
Defective tray motor or connector disconnection
Defective end fence home position sensor or connector
disconnection
Defective upper limit sensor or connector disconnection
Defective tray lift motor or connector disconnection
Check the cable connections.
Check and/or replace the defective component.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
When the tray lowers, the tray lift sensor does not go off within 1.5
sec.
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.
Defective tray lift motor or connector disconnection
3-26 SM