HP Error Codes & Troubleshooting Directory
HP (Hewlett-Packard) is one of the world's largest printer manufacturers. Our database covers HP LaserJet, OfficeJet, and Envy series diagnostic codes, including common network spooler errors, memory faults, and sensor lockouts. Below you'll find the complete list of common HP error codes, including meaning, severity ratings, DIY fix success rates, and cost guides.
Common HP Error Codes
HP 79
Firmware error indicating a corrupt print job in the queue, or an issue with the printer's network communication module.
HP 49
Communication or formatting error, typically triggered when trying to process complex PDF or graphic files that overflow the memory.