Clear jams, Common causes of jams – HP LASERJET PRO P1102w User Manual
When clearing jams, be careful not to tear jammed paper. If a small piece of paper remains in the
product, it could cause additional jams.
Common causes of jams
The input tray is loaded incorrectly or is too full.
When you add new media, always remove all of the media from the input tray and
straighten the entire stack. This helps prevent multiple feeds and reduces media jams.
The media does not meet HP specifications.
The product might need to be cleaned to remove paper dust and other particles from the paper
Loose toner might remain in the product after a media jam. This toner clears up after a few sheets print.
If you get any toner on your clothes, wash them in cold water. Hot water will
permanently set the toner into the fabric.