HP DeskJet GT 5820 - Manual (Page 89)

4. Gently turn the printer over, locate the cleanout door on the bottom of the printer, and then pull both
tabs on the cleanout door to open it.
5. Remove the jammed paper.
6. Close the cleanout door. Gently push the door towards the printer until both latches snap into place.
7.
Turn the printer over, and then press the Power button ( ) to turn on the printer.
8. Turn the ink valve to the unlocked position.
Clear a print carriage jam
Resolve a print carriage jam. Use an HP online troubleshooting wizard
If something is blocking the print carriage or it does not move easily, get step-by-step instructions.
NOTE: The HP online troubleshooting wizards may not be available in all languages.
ENWW Jams and paper-feed issues 83