Target Part/SP No.:PTR Open/Close LED (LED1) / SP5-804-206 (PTR Open/Close LED)
Cause verification  | Problem Judgement  | 
|---|---|
Turn ON the paper transfer unit open/close LED with OUTPUT check  | 1: Close  | 
Execute an OUTPUT check without an object (e.g. paper) placed within the sensor detection range.  | 0: Open  | 
Solution:
- Clean the LED.
 - Reconnect the connector.
 - Replace the LED.
 - Replace the Paper Transport IOB (PCB1).
 - Replace the harness.