Check the cable between the scanner and your computer is firmly plugged in at both ends. ... If you're connecting the scanner to a USB hub, connect it to a port attached directly to the motherboard instead. Unplug any other devices, particularly scanning devices, that may be causing a conflict with the scanner.
How do I fix a scanner that won't scan?
You don't need to try them all; just work your way down the list.
- Check the connection issue.
- Enable Windows Image Acquisition (WIA) service and associated services.
- Update your scanner driver.
- Troubleshoot hardware problems.
- Run System File Checker.
Why is scanner not detected?
When a computer does not recognize an otherwise functioning scanner that is connected to it via its USB, serial or parallel port, the problem is usually caused by outdated, corrupted or incompatible device drivers. ... Worn, crimped or defective cables can also cause computers to fail to recognize scanners.