Printer paper jam: remove sheets gently and follow the model display
Locate the jam, follow manufacturer instructions, disconnect power when reaching inside and avoid sharp tools.
A paper-jam warning does not mean you should yank paper out the front. HP's OfficeJet guidance calls for checking the specific paper path, removing sheets with both hands and avoiding sharp tools. When reaching inside, follow the model's power-disconnection instructions; laser-printer fusers can be hot and should not be touched.