Steps to Troubleshoot an HP Scanner not Working
Some minor faults with the HP scanner are probably the source of the problem. Before continuing, we recommend that you try the following methods to resolve the HP scanner not working issue.
1. Check to see if the scanner is turned on.
2. Examine the power cable and outlet.
3. Check to see if the USB cable is properly connected (Try Reconnecting It With The Computer).
4. Check To See If The Computer Recognizes The Scanner.
Try Uninstalling and reinstalling the scanner.
Allow Scanner through Windows Firewall.
Connection Problem between Computer and HP Scanner.
Replace the USB Cable of Scanner.
Update the Drivers.
Run the Scannow Utility.
Start the Windows Image Acquisition Service.