Service Call Tables - 7 - Ricoh D143 Field Service Manual

6. Troubleshooting

Service Call Tables - 7

SC7xx: Peripherals
No. Type
700
D
-01
834
Details (Symptom, Possible Cause, Troubleshooting Procedures)
ADF original table lift malfunction
One of the following conditions was detected.
• The bottom plate position sensor does not activate when the bottom plate
motor lifts the original table.
• The bottom plate HP sensor does not activate when the bottom plate motor
lowers the original table.
• Loose, broken or defective harnesses, connectors of the bottom plate
position sensor, bottom plate HP sensor, bottom plate motor
• Defective bottom plate position sensor
• Defective bottom plate HP sensor
• Defective bottom plate motor
• Defective ADF main control board
Bottom plate motor rotation:
1. Check or replace the bottom plate position sensor.
2. Check or replace the bottom plate HP sensor.
No bottom plate motor rotation:
1. Replace the bottom plate motor.
2. Replace the ADF main control board.