Media is jammed at the specified location (and possibly at other locations). If the message persists after all jams have been cleared, a sensor or sensor lever might be stuck or broken.
Fix
For all jam messages, do the following:
1. Remove jammed print media from the specified location. Check the entire paper path for other pieces of media in the path.
2. Open and close the top cover to clear the message.
3. Check sensors and flags in the paper path for proper operation.
HP Laserjet Error Code 13.XX PAPER JAM
