I hope this solved your problems with your Canon Scanner.
Now my Canon scanner works without any issues and the same should be true with your scanner. Lastly, I click OK three times to return to the Control Panel, and then I exit the Control Panel.įinally, I restart the CanonScan Toolbox. In this case, it is c:\windows\twain_32\CNQL25. Next I add the path name for my TWAIN driver to the Path system variable. Then I scroll down on the system variables and find the Path, highlight it and then click Edit. What I do first is open the Control Panel. But one you know what the problem is the solution is easily fixed. This problem took a while for me to find and solve. How to Solve the Canon Scanner – Unable to Open TWAIN Source Error
The problem is that the TWAIN drivers are not within the computer system variables path. BTW you can download the Canon Scanner software on their site. Just as an aside, I need to do this on my Windows 10 and Windows 11 computers too!īelow is the error message that I always get: Each time I replace my laptop (which happens frequently enough) I encounter the same problem with this Canon scanner, so I thought that I would share with all of you how to solve this issue because it can be a bit annoying. Recently I replaced my laptop and one of the important things that I needed to get working on it was my Canon LiDE25 scanner that I used for tasks. Last updated on August 2nd, 2022 at 10:27 am
