Samsung ML-3471ND/XAX - Page 122

Service Manual
Adjustment and Troubleshooting
4-54
Samsung Electronics
6) Cover Open
1. The hook lever in the
top cover may be defective.
Replace the hook lever,
if defective.
1. Check the insertion of the
Cover Open S/W Connect.
2. Replace the Main Control
board or Cover Open S/W.
2. Check the connector
and circuit of the cover switch department
in the Main Control board.
Description: The ERROR lamp is on even when the print cover is closed.