Question What would prevent optical scanners from operating ?

[sebastian42]

I replaced the motherboard of a x32Win10ProV22H2 PC with one that had the same code specification, but now the optical scanner (which still works in another PC) will no longer work here; nor would several different other WORKING scanners. What they have in common is C:\Windows\System32\Drivers\usbscan.sys.

 

[faalin]

Have you tried to reinstall drivers for the scanner?

 

[sebastian42]

I have.

 

[sebastian42]

I freshly installed x32Win10ProV22H2 in a NEW SSD, and booted it in this PC where the scanner wont work. Once I installed the driver from the original software, the scanner worked in the fresh system. So although the problem started when the motherboard was replaced, the 'new' motherboard does NOT prevent the scanner from working; AND the original driver is still able to make the scanner work. What to make of that ?

 

[sebastian42]

I replaced the motherboard of a x32Win10ProV22H2 PC with one that had the same code specification, but now the optical scanner (which still works in another PC) will no longer work here; nor would several different other WORKING scanners. What they have in common is C:\Windows\System32\Drivers\usbscan.sys.

I had not previously noticed an error message in Device Manager which mentioned a probable error in Registry and gave Code19. A google search led me to the correct key for Upper Filters that had to be deleted. Now the scanner works again.