H
79:04
Moderate
HP · Printers
Network/firmware interaction fault during job processing.
Quick Answer
Error code 79:04 on your HP Printers means: Network/firmware interaction fault during job processing.. This is usually fixable — see the step-by-step guide below.
Likely Causes
  1. Job data incompatibility
  2. Outdated firmware
  3. Network print stack issue
  4. Corrupt spooler queue
How to Fix It
1
Clear spooler queue on print server/client.
2
Update firmware and printer driver.
3
Test direct USB print path.
4
Disable advanced features (bidirectional support) temporarily.
5
Re-enable services once stable.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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