How do I interpret specific error codes displayed on my HP printer and what steps should I take to fix them?

HP printer error codes often provide clues to the problem. Codes like '0x...' usually indicate a serious hardware or firmware issue, while others might point to specific issues like 'E0' for a general error, 'E3' for a carriage jam, or 'E4' for a paper jam. To interpret a specific code, consult your printer's manual or visit the HP support website and search for the code. Common fixes involve power cycling, checking for obstructions, resetting the printer, or updating firmware.