Tks a lot Fabrizio FAbrizio - Saturday, May 4, 2013 11:41:53 AM Thanks a million!! I had to create a new path variable though, but it worked at the end. Tony H - Wednesday, July 18, 2012 1:24:36 PM I spent half an hour installing/reinstalling drivers, searching new versions etc, because it didn't work. You might have to use Jeff's path variable trick; I did that before all the rest and I didn't go back and test without it, so YMMV. weblink
David Peck - Wednesday, August 22, 2012 8:54:39 AM awesome. This fixed the problem I was having with my Caonn MP800 and the MP Navigator software as well. A Falk - Wednesday, June 5, 2013 11:45:16 AM Thanks, this fixed my scanner problem too. Many Thanks! https://forums.techguy.org/threads/solved-twain-issues-ive-tried-everything.1100161/
Now working OK. Haymo - Thursday, January 5, 2012 11:43:09 PM Thanks a lot Jeff This was great and solved my problem immediately Aaro from Finland - Friday, January 6, 2012 1:56:36 PM Thanks. Thank u so much Otto - Tuesday, December 6, 2011 10:57:58 AM Thank you very very much!
AB - Friday, August 26, 2011 6:27:07 PM Thank you so so much! David - Sunday, May 15, 2011 5:16:37 PM Thanks Jeff, luckly found this page quickly LIDE70 fixed in no time on both XP and Vista computers! I have spent hours with unistalling and reinstalling the Canon drivers and software to solve this problem which made no impact. Unable To Select Twain Source Windows 8 Melissa - Sunday, July 31, 2011 11:45:32 PM Thank you, it worked for me.
More than one year I was using older computer for scanning only... Unable To Select Twain Source Windows 7 I installed the latest Twain driver from Epson to no avail. Worked perfectly for me. http://h30434.www3.hp.com/t5/HP-Connected-Mobile-Printing-and-Cloud-Printing/can-not-open-twain-source/td-p/1212629 Thanks again.
Last week it crapped out displaying the following error: "Could not open the TWAIN source. Unable To Open Twain Source Windows 10 This works fine for my CanoScan 4400F! Last night I completely wiped out everything (uninstalled, deleted files, etc) related to the Epson. All those who posted that the hint did not help, chech please for the extra SPACE .-) Martin - Saturday, October 20, 2012 11:07:21 AM Thanks!
Thomas Darlington - Wednesday, October 24, 2012 10:20:18 AM You save my day Jeff! https://forums.adobe.com/thread/486625 This fixed the issue with my canoscan 656u not working on Windows 2003. Could Not Open The Twain Source. Make Sure There Is A Valid Source IT WORKED! Unable To Select Twain Source Windows 10 Thanks, Jackie Jackie - Saturday, October 1, 2011 12:46:25 PM Hi Jeff, Thank you so much.
Did work for me. have a peek at these guys My beloved Canon LiDE 25 are reunited once more :) ==== Sharada Prasad - Friday, June 21, 2013 12:19:08 AM Worked well. Many thanks. aspen_matthews, Jun 6, 2013 #9 aspen_matthews Thread Starter Joined: Jun 1, 2013 Messages: 24 Noyb said: ↑ I'm still thinking the Twain is installed for Windows Fax & Scan to work Canoscan Unable To Select Twain Source Fix
Richard - Sunday, November 18, 2012 4:52:04 PM Thank you !!!! I still don't know how my path variable got erased, but who cares, it's fixed now. CanoScan Toolbox Paul Marangoni - Sunday, September 23, 2012 5:34:52 PM I modified Path and it seemed not to work, but I had to close and re-launch Photoshop, the destination application. check over here I am computer programmer with lots of experience and it would have taken me a lot of time and so you saved me a lot of headache!
Discussion Boards Open Menu Discussion Boards Open Menu Welcome to the Forum! Unable To Select Twain Source Canoscan Scanner Windows 7 Alan - Sunday, November 18, 2012 11:36:41 PM It's people like you that actually help the world go round. Thanks for posting a simple, but very effective fix!
One of the recommended solutions was to make sure a certain folder path is in your PATH environment variable. Finally I can scan with my FB630U with Vista and Picasa. I was going to buy a new scanner. Twain Source State Is Not Valid For The Required Operation your solution worked just fine.
Ed - Wednesday, October 17, 2012 5:14:52 PM This was a huge help. Loading... I used CanoScan Toolbox 18.104.22.168 and ScanGear CS driver 12.11 from Canon's website. this content This helped me with CanoScan 8400F.
Thank you so much for this wonderful article! ;) kaneXtreme - Friday, January 27, 2012 6:35:44 AM That workded. Ross - Wednesday, September 29, 2010 8:25:53 PM Thanks a lot! I was about to do some reinstall and was saved by this post! Philip - Wednesday, June 13, 2012 3:09:37 AM After a reboot worked like a charm!.
Legendary Music 34,074 views 2:44 How to Clean The Scanner Glass Canon CanoScan LiDE 100 - Duration: 10:05. Jacob - Thursday, January 31, 2013 2:16:09 PM This worked for me, old CanoScan LIDE60 scanner on Windows 7 Enterprise 64-bit. Can't understand why it used to work but then decided not to. This site is completely free -- paid for by advertisers and donations.