Lexmark Pro4000 Series User Manual page 149

Troubleshooting
1
Pull up the duplex latch and remove the duplex unit.
2
Firmly grasp the paper, and then gently pull it out.
Note: Be careful not to tear the paper while removing it.
3
Reinsert the duplex unit to clear the message.
Paper jam in the ADF (select models only)
Note: The parts inside the printer are sensitive. Avoid unnecessarily touching these parts while clearing jams.
1
Open the ADF cover, and then gently pull out the jammed paper.
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