Paper Transfer Unit Open/Close Led Not Lit; Paper Transfer Unit Open/Close Led Always Lit - Ricoh MP C3004 Field Service Manual

6. Troubleshooting
Execute an INPUT check without an object (e.g. paper) placed within
the sensor detection range.
Solution:
• Clean the sensor.
• Reconnect the connector.
• Replace the sensor.
• Replace the Paper Transport IOB.
• Replace the harness.

Paper Transfer Unit Open/Close LED not lit

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

Paper Transfer Unit Open/Close LED always lit

Target Part/SP No.:Paper Transfer Unit Open/Close Sensor / SP5-803-028 (PTR Open/Close
Sensor)
Execute an INPUT check with an object (e.g. paper) placed within the
sensor detection range
1136
Cause verification
Cause verification
Cause verification
Problem Judgement
0: Open
Problem Judgement
1: Close
0: Open
Problem Judgement
1: Close