1. Check the print settings to make sure that the assigned printer tray is set correctly for the document you are trying to print.
2. Check to make sure that the plastic arm that holds the paper down is maintained properly and not clogged with paper scrap.
3. Check to make sure that the settings for the printer tray are correct. If they are not, use the printer control panel or software to properly select the printer tray for the document to be printed.
4. Lastly, consult your printer user manual or contact the printer manufacturer’s support line for further troubleshooting assistance.