Windows 7 64 bit Path: C:\Windows\twain_32\CNQL500 Double check yours... it works! AB - Friday, August 26, 2011 6:27:07 PM Thank you so so much! You solved the problem. weblink
Thank you so much for this wonderful article! ;) kaneXtreme - Friday, January 27, 2012 6:35:44 AM That workded. Running Toolbox as Administrator helped me. Ronny - Tuesday, March 23, 2010 9:46:37 AM Mucho Gracias Senor Jeff! Wish I would have found this a couple of years ago!
Rating is available when the video has been rented. Added the folder to the system path and it started working again. Trying to install it on Win7 64 bit produces that error because Canon haven't/won't release a 64-bit version of the necessary driver.I spent a lot of time trying to get it
Working... Thank you VERY much indeed. Thank you. Unable To Select Twain Source Canoscan Scanner Windows 7 Each OEM file has a number and most are in pairs (e.g.
many thanks Cynthia - Monday, September 9, 2013 4:03:41 PM Canon MF3240 working great in Win8_64 AFTER APPLYING this PATH solution (and Win7_64 drivers)! Unable To Select Twain Source Windows 10 Website | Twitter | Google+ | View all posts by Priyanka Naskar Majumder → You May Also Like : Switching from windows xp... I've used my scanner for years with no problem. Enjoy!
Click APPLY and then CLOSE and restart computer.Run the install from the CD as normal and Restart again. Unable To Open Twain Source Please Check Connection Then Restart Toolbox Nico008 - Sunday, February 26, 2012 7:30:25 AM Kudos! i am unable to run canon imageclass MF 4400 for scanning. Click Apply, then OK.
Worked great. Been planning to replace the scanner for more years than i care to think about, but mechanically the thing is fine - it's just the twain driver disappears occasionally and i've Unable To Open Twain Source Canoscan Lide 25 Faizal - Wednesday, August 8, 2012 10:50:42 PM Thanks, I was holding on fixing this for days before I googled this.. Canoscan Unable To Select Twain Source Fix Took me a hour to get the Scanner running on x64.
but instead i changed it into C:\........ http://mixtecadigital.com/twain-source/unable-to-select-twain-source-windows-8-canoscan.html Unfortunateley the drop down box is not allowing me to do anything. John - Tuesday, December 18, 2012 6:48:13 AM I had just about given up expecting to use my Canoscan 4200F on Win 7 64-bit Home Premium. Eric - Saturday, September 24, 2011 9:25:23 PM Thanks Jeff for the information regarding the "path". Unable To Select Twain Source Windows 8
Left it at 32 for 32 bit and the scanner works. Dave Qnir - Sunday, August 19, 2012 11:39:00 AM Great! Thanks jesse wu - Friday, December 10, 2010 8:53:51 PM I feel unlucky. check over here At a minimum it will include this: %SystemRoot%\system32;%SystemRoot%; -Jeff Jeff Widmer - Monday, November 7, 2011 5:06:57 AM Yep, worked for me too!
Articles & News Forum Graphics & Displays CPU Components Motherboards Games Storage Overclocking Tutorials All categories Chart For IT Pros Get IT Center Brands Tutorials Other sites Tom's Guide Tom's IT Twain Source Download Jimbo - Monday, May 14, 2012 1:46:23 PM Many thanks for the solution it is rare that such precise advise is found on the web Antony Zaglas - Wednesday, May 30, All Rights Reserved Tom's Hardware Guide ™ Ad choices
Or why is it necessary to have it in the PATH variable in the first place. Path fix did NOT work as others have reported for this version. Again, don't use Toolbox 5.0, it didn't work for me (Win 7 64-bit). Unable To Open Twain Source Canoscan Lide 500f then read again and check all step by step now is working , thanks again Josip - Monday, January 28, 2013 8:07:23 PM Thanks Jeff!
support site. THanks!!!! This worked for me as well with a Canon 4400f on Windows 7 x64. this content Anything but a Canon.
Install the driver without plugging in the scanner until either prompted or when driver installation is completed.This is a harmless way to start, may not do the trick but ought at Zubair - Tuesday, April 10, 2012 11:39:56 AM Wow, you know how much time I wasted on this until i found your tip!!