Paper Empty Without Indication; Cover Open - Xerox Phaser 3450 Service Manual

7.3.5 Paper Empty without indication

• Description
The paper lamp on the operator panel does not come on when the paper cassette is empty.
Check and Cause
1. Bending or deformation of the actuator of the paper sen-
sor.
2. The function of the engine board is defective

7.3.6 Cover Open

• Description
The ERROR lamp is on even when the print cover is closed.
Check and Cause
1. The hook lever in the top cover may be defective.
2. Check the connector and circuit of the cover switch
department in the Main Control board.
Solution
1. Replace the defective actuator.
2. Replace the engine board.
Solution
1. Replace the hook lever, if defective.
2. Check the insertion of the Cover Open S/W
Connect.
3. Replace the Main Control board or Cover Open
S/W.
TROUBLESHOOTING
Service Manual
7-15