scanner not available - always worked before

[BANDAO]

1. Error message stating scanning not available

[Max3Aj]

@BANDAO, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 
I understand you're encountering a "scanner not available" error on your HP DeskJet 4155e All-in-One Printer with Windows 11, even though it worked fine before. Let's walk through some steps to get your scanner working again.

Restart Devices

• Power off your printer and computer.
• Unplug the printer from the power source for 60 seconds.
• Plug it back in and power on both devices.

Check Connection

• If you're using Wi-Fi, ensure both the printer and PC are on the same network.
• If using USB, try a different USB port or cable.

Update or Reinstall Printer Drivers

Outdated or corrupted drivers can cause scanning issues.

• Visit the official driver page: HP DeskJet 4155e Drivers
• Download and install the latest Full Feature Software and Drivers for Windows 11.

Check HP Smart App

If you're using the HP Smart app:

• Ensure it's updated via the Microsoft Store.
• If you see "Scanning is Currently Unavailable", follow this HP guide:  HP printers - 'Scanning is Currently Unavailable' displays in the HP Smart app (Windows, macOS) | HP...

Enable 'Scan to Computer'

Sometimes this feature gets disabled:

• Open HP Printer Assistant (search in Start Menu).
• Go to Print, Scan & Fax > Manage Scan to Computer.
• Click Enable.

Firewall/Antivirus Settings

Temporarily disable your firewall or antivirus to check if it's blocking the scan function.

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Select "Yes" on the bottom left to say “Thanks” for helping! 

Max3Aj

HP Support