Samsung ML-2251N/XAA Service Manual page 87

7.3.7 No ERROR lamp when the cover is open
• Description
The ERROR lamp does not light even when the print cover is open.
Check and Cause
Use EDC diagnostic code 09, Check for error code '64'.
1. The 'Hook Lever' actuator may be stuck or faulty
2. The OPE LED may be faulty. Check the connector and
cables between the main PBA and the OPE panel
3. The sensor switch on the main PBA may be faulty
Samsung Electronics
Solution
1. Use EDC mode to check cover switch operation.
Check and replace the actuator if necessary.
2. Replace the cable or OPE Panel as necessary.
3. Replace the main PBA if necessary.
Troubleshooting
Service Manual
7-15