Acrobat XI won't recognize scanner

[BlackCoffee]

I installed Acrobat XI replacing Acrobat 9 and the program won't recognize my scanner.

Setup: Windows 7 x64, Canon MG6120

All other programs, to include Photoshop, work fine with the scanner. The scanner works in other user profiles (for Acrobat XI) on the computer, but not in my main profile. The scanner is on the list of devices for Acrobat XI, but when asked to scan, the program cannot find the scanner. If I attempt a failed scan, on logout from the user profile I get an error associated with LogTransport2.exe. This error only occurs when Acrobat XI attempts a scan an fails.

I have tried deleting all local app data for Acrobat in the user profile, uninstalled and reinstalled the printer but nothing seems to work. I believe it is a configuration error in the specific user profile, but I cannot find out were the information is stored.

Thanks,

[Guest]

Dear AAdobe Sol,

Does your suggestion only work when there is no Internet connection or will it also work with my problem?  My Adobe Acrobat Pro will only recognize my scanner when I am logged into my administrative account.  Adobe really needs to step up to the plate and fix the same problem that has existed through versions IX, X and XI.

[hunnypuppy]

Perfect AAdobeSol that solved my problem, deleting the registry key

[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\TWAIN]

"Default Source"="z:\\$IMPORT$DS$ROOT$\\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\\0000"

[daved62026548]

Solved my problem Canon MX410

[michaell62691194]

Same here.

Opened Regedit and followed Aadobesol's directions and voila!  CANON PIXMA MX922 scanner works with Adobe Acrobat XI Pro.  Except I did not delete the entry.  I renamed it first, but now that I know it works, I'm deleting the old entry.

[andybeeton]

That fixed it for me too! Win 7 Pro x64 + Acrobat X1 + Canon MX925 recently changed from an HP. Kudos!

[Guest]

AAdobeSol or anyone

I've tried this but can't get beyond "Current User." Twain isn't an option at that point. What should I do?

[lancem22145807]

After many days of banging my head... this solution works!!!! 

Just delete that line and save and it works after you close the REGEDIT window.

Thanks

[Guest]

I've tried this but can't get beyond "Current User." Twain isn't an option at that point. What should I do? Which registry key is being deleted? I may be able to dig deeper if you provide that information. Any help would be greatly appreciated.

Thank you,

Noel

[andrear59821441]

I don't have Twain under CurrentVersion

[edithg73830196]

This recommendation is 10 years old. Unfortunately, it is still necessary. But fortunately, it still works.

[WC_Boy]

Believe it or not, your question helped me with my problem.  Just got my first Epson printer and could not get it to work with Adobe Pro XI.  Your comment about "list of devices" made me look for that, and update my preferences.

Thank you.

Epson was clueless when I called them.

[Clay Crowell]

Had the same problem with my Epson. Deleting the registry key did the job. Thanks. That was frustrating me.

[Jean5EA3]

Hello.

For your information I found another entry in the Registry that I deleted and I was able to choose a new scanner.

This is the tDevice key:

[HKEY_CURRENT_USER \ Software \ Adobe \ Adobe Acrobat \ 11.0 \ Scan]

"tDevice" = "HP Color LaserJet Pro M478f-9f TW"

Once deleted, I did a scan and Acrobat asked me to choose a scanner.

Hope this information can be of use to you as well.

[Heatonmax]

This works.  Finally.  Go to registry editor by left clicking the windows start icon and entering RUN in the search box.  Then click Run Desktop app.  Enter regedit in the Open box.  Follow the directory tree below and delete the file "z:\\$IMPORT$DS$ROOT$\\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\\0000"

[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\TWAIN]

"Default Source"="z:\\$IMPORT$DS$ROOT$\\{6BDD1FC6-810F-11D0-BEC7-08002BE2092F}\\0000"

I removed the default source entry and that corrected the problem.

[Mr_Wolf_to]

Hi, I know this is a very old thread; however, I had a similar problem and perhaps I found a solution and I want to share.

Some months ago, I installed my scanner, Canon LiDE 25, in my new notebook with Windows 10. I could scan with every program, except Acrobat 9. The only solution that worked was the one posted here, that is, to open Acrobat as Administrator.

However, after the infamous Fall Update, I couldn't scan with any program, getting the error "Unable to select TWAIN source".

The solution I found is to go to Control Panel -> System -> Advanced -> Environment Variables and add:

;C:\WINDOWS\twain_32\CNQLXX\

to the variable Path.

XX is the number of the scanner and please note the semicolon ; at the beginning, to separate from the other entries.

Automagically, the scanner started to work again with any program, Acrobat included!

Hope this helps.

[SWEET DEALS PDX]

Whatdo you mean "XX is the number of the scanner"?