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It sounds like your HP OfficeJet Pro 8620 is experiencing a printer failure message, and the usual methods of turning it off and unplugging it haven't resolved the issue. Here are some troubleshooting steps you can try to get it working again:
1. Perform a Hard Reset
Sometimes a hard reset can resolve persistent errors:
- Turn off the printer.
- Unplug the printer from the power source.
- Wait for 1–2 minutes to allow any residual power to drain.
- Plug the printer back in and turn it on.
2. Check for Error Messages or Codes
- Look for any additional error messages on the printer's screen (or on the computer if you're printing from it). Sometimes, printer failures are accompanied by error codes that can provide more specific details about the issue.
- If you see an error code, look it up on the HP support site to get more information on how to fix it.
3. Clear Paper Jams (if applicable)
Even though the message says "printer failure," there could be an undetected paper jam or obstruction:
- Open the printer's access doors (front and rear) and look for any jammed paper.
- Check the paper feed area, printhead, and output tray for any stuck paper.
- Remove any paper or debris carefully.
4. Check the Printhead and Cartridges
- Sometimes a failure can be caused by the printhead or ink cartridges:
- Remove the ink cartridges and inspect them for any visible issues (like leaks, damage, or dirt).
- Check the printhead to ensure it’s properly seated and clean.
- If you have a spare set of ink cartridges, try replacing the current ones and see if that resolves the issue.
5. Update or Reinstall Printer Drivers
A corrupted printer driver can also cause failure messages:
- Uninstall the printer driver from your computer:
- Go to Control Panel→ Devices and Printers→ Right-click the printer and select Remove device.
- Uninstall the printer driver from Device Manager.
I hope this helps.
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