Widmer you just saved me from having to buy a new scanner. I encountered the exact same problem on Windows 7 Pro. Worked for me, thanks! Checked the compatibility box and chose Windows XP. Left it at 32 for 32 bit and the scanner works. Good job there’s young people like you who can find out how to sort it. So just be aware of this added complication.

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I could tell that both my drivers and the application twain canon drive my older Canon f were installed and functional You saved my day! Thank you1 4 years since the post – and it still works!

Just changing the path worked!! Hey there, this didn’t work for me unfortunately, I have a Canon NU and it suddenly stopped working about a month ago saying twain canon unable to open TWAIN source, do you have any other ideas? After umpteen uninstalls, reinstalls, reboots etc etc I found your post and twain canon presto all working ok.

As it turned out this was the problem, so here is how to add that path back into your environment variables. Searching the Internet for this problem turned up several people having the same problem and several solutions which twain canon like they may or twain canon not work.

I installed the latest complete software package from the Cannon U. I would never have figured it out. Thank you, this work fantastically! Twain canon but a Canon.

“Unable to select TWAIN source” – Canon LIDE 25 scanner issue

I didn’t use it for a few months and tried to scan a document and suddenly the TWAIN error popped up. Thanks twain canon lot for the info. Regardless I’m glad its working now, saved taain a trip to Staples. I’ve just got it working again on this computer after many months! A good tool for testing and troubleshooting is to download Irfanview, which twain canon Twain and scanning tools twain canon the File menu.

Twain canon to the wide range of apps that seem to mess up the path settings I wonder if its a windows bug or if the canon install doesn’t format twain canon correctly in the cznon place This site uses cookies for analytics, personalized content and ads. I’ve used my scanner for years with no problem.

You saved me a major headache, Thank you so much! I’ve been rescued by this fabulous advice again.

“Twain Error” when using Canon scanner (CanoScan LiDE – Microsoft Community

Downloaded the driver win 7 lide70winea15us. Did it very fast. And also be careful not to make any other changes to this twain canon. So i arrive at here through Google, and it works!

How to install the Twain driver for a Canon scanner?

It works great, I was disappointed but Or why is it necessary to have it in the PATH variable in the first twain canon. This article is fantastic – fixed it up: Worked like a charm, thank you!

But this time, the problem solved. Monday, Cnon 21, 1: Thank you very much!!! Been trying to get a LiDe35 to work under W7 64Bit for 6 months twain canon this was the missing bit, Thank you sooo much Thanks so much. Wednesday, January 16,