HP Printer Error Code 79: How to Fix It

Easy 15-30 minutes High Severity Verified June 2026
Error Code
Error 79
Brand
HP
Product Type
printer
Severity
High
DIY Difficulty
Easy
Estimated Fix Time
15-30 minutes
HP printer error code 79 indicates a firmware crash, typically caused by a corrupted print job stuck in the queue or memory issues. This error will prevent your printer from functioning until resolved, but can usually be fixed with simple troubleshooting steps.
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Tools You'll Need

How to Fix Error Code Error 79

  1. Power cycle the printer

    Always unplug the printer before performing any maintenance to avoid electrical shock.
  2. Clear the print queue

  3. Remove and reinstall printer cartridges

    Handle cartridges carefully and avoid touching the metal contacts or nozzles.
  4. Check for paper jams

  5. Reset printer to factory defaults

  6. Update printer firmware

    Never interrupt a firmware update as this can permanently damage the printer.
  7. Test with simple document

Parts You May Need

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When to Call a Professional

Contact HP support or a printer repair technician if the error persists after trying all steps, if firmware update fails, or if the printer is under warranty. Professional service may be needed for hardware failures or mainboard issues.

Frequently Asked Questions

What causes HP printer error code 79?
Error 79 is caused by firmware crashes, typically triggered by corrupted print jobs, incompatible files, low memory, or outdated firmware. Complex documents with large graphics are common triggers.
Will I lose my printer settings when fixing error 79?
Power cycling and clearing print queues won't affect settings, but factory reset will erase all custom configurations including network settings, which you'll need to reconfigure.
Can error 79 damage my HP printer permanently?
No, error 79 is a software issue that doesn't cause permanent hardware damage. However, repeated occurrences may indicate failing memory components that could eventually require replacement.
How do I prevent HP printer error 79 from happening again?
Keep firmware updated, avoid printing extremely large or complex files, ensure adequate printer memory, use genuine HP cartridges, and regularly clear print queues of old jobs.
Why does error 79 keep coming back on my HP printer?
Recurring error 79 usually indicates insufficient printer memory, consistently corrupted print jobs from specific software, outdated firmware, or failing hardware components that need professional diagnosis.