Target Part/SP No.:Tray Set Switch (2nd Feed Tray) (S21) / SP5-803-020 (Tray 2: Set Sensor)
Cause verification  | Problem Judgement  | 
|---|---|
Manually press the referenced switch (Done after detaching paper feeding tray 2 from the machine.)  | 1: Not set  | 
Pull out paper feed tray 2 from the machine.  | 0: Set  | 
Solution:
- Reconnect the connector.
 - Replace the sensor.
 - Replace the Paper Transport IOB (PCB1).
 - Replace the harness.
 
2nd Paper Feed Tray
Check the 2nd tray set sensor to see if there are any defects.  | Replace the 2nd paper feed tray.  |