Lexmark MX711
Firmly grasp the jammed paper on each side, and then gently pull it out.
Note: Make sure all paper fragments are removed.
From the printer control panel, touch Done to clear the message and continue printing.
This article shows the primary information required to escalate paper jam issues.
The printer posts a 230.03 paper jam error with the paper stopping at the rear door. See this article for troubleshooting steps.