Lexmark MX931
The trays automatically detect the size of plain paper. For specialty media like labels, card stock, or envelopes, do the following:
From the home screen, touch Settings > Paper > Tray Configuration > Paper Size/Type > select a paper source.
Set the size and type of the specialty media.
Troubleshooting steps to resolve a jammed A5 size paper inside a photoconductor for the MX931 printer.
This article shows the primary information required to escalate media issues.