When your scanner does not respond, the first thing to do is to make sure that it is properly connected to your computer and powered on. Disconnect the power and USB cables from the scanner and then re-connect them securely. If you’re using a USB connection, try a different USB port.
If this doesn’t resolve the issue, it’s possible that the drivers need to be reinstalled or updated. Download the latest scanner drivers from the manufacturer’s website and install them. If the software has been installed to the system, uninstall it and then reinstall it. Make sure the latest version of the software is installed for optimal performance.
Next, check to see if the scanner is listed in Device Manager. Locate the scanner in Device Manager, expand the list, and then see if the driver is marked with an exclamation point. If the driver is causing problems, you can update or uninstall it.
If none of the above steps are successful, it’s likely that your scanner has a hardware issue and needs to be repaired. If the scanner is still under warranty, contact the manufacturer for assistance. Otherwise, you may need to take it to a repair shop or try replacing the scanner.
Hopefully these steps will help you to identify and resolve the problem. If not, it’s a good idea to consult a professional technician who can diagnose the issue and get your scanner working again.