HP · Wireless / model-specific error
HP LaserJet M232–M237 / M232e–M237e Er79
HP has a separate model-family article for Er79 on M232–M237/M232e–M237e printers and states that this condition occurs only when the printer is connected to a wireless network.
Start hereDo not assume the generic HP 79 procedure is the whole story on this family; use HP's dedicated M232–M237 Er79 instructions.
What to check
Step 1
Confirm the printer family matches the HP article.
This page is intentionally model-specific because HP describes unique behavior for M232–M237/M232e–M237e.
Step 2
Follow HP's dedicated Er79 sequence.
HP's published procedure begins by powering off the printer and removing the toner cartridge before continuing its model-specific steps.
Step 3
Use HP's article for the complete sequence.
Because the procedure is model-specific and may change, Printer Triage links directly to HP rather than rewriting every service step.
Verified sources
Printer Triage is an independent troubleshooting reference and is not affiliated with HP. Use the exact model's manufacturer documentation when instructions differ.