Paper jam in the fuser
Open door A.
Remove the jammed paper.
Note: Make sure that all paper fragments are removed.
Open the fuser access door.
Close door A.
Paper jam in the duplex unit
Open the duplex cover.
Close the duplex cover and door A.
Remove the paper that is stuck in the trays to continue printing.
Lexmark CS/X72x and XC/C41xx: Troubleshooting 230.x3 Paper Jam