Lexmark MX610
Remove paper from the multipurpose feeder.
Remove the jammed paper.
Note: Make sure that all paper fragments are removed.
Flex, fan, and align the paper edges before loading.
Reload paper, and then adjust the paper guide.
Lexmark MX/MXxxx, MB/B2xxx, and XM/Mxxxx: Unable to Load Paper into the Multipurpose Feeder (MPF)
Remove paper that is stuck in the duplex unit to continue printing.