Question about Canon CanoScan LiDE 70 Flatbed Scanner

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Data transer error "Twain source code 2,155,0" Will not scan

I tried to re-install - but it still will not scan. Any suggestions?

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5 Suggested Answers

  • 2 Answers

SOURCE: Error message

Hi toolpusher

Try going to CanoScan Toolbox > Settings and reset the 'defaults' button at bottom... this will restore factory settings and hopefully fix your problem... The other error message you can expect to get is "unable to scan - insufficent memory, check your **** space' (or something similar)... same fix works for both! ...Have had both messages on mine, sounds like a semi-regular conflict on some sort, but seems to be easily fixed. Good luck :-)

Posted on Sep 30, 2008

  • 111 Answers

SOURCE: canon scanner

TWAIN is the type of scanner driver that is used for this scanner. It is probably the most common type of scanning driver.

Did you install Toolbox? Not sure? Assuming this is Windows, click Start, All Programs, Canon. Look for open CanoScan Toolbox (4.9 I think). Once this is open, click the 'Settings' button. There should be a drop-down menu for 'Select Scanner'. Make sure this shows the CanoScan LiDE 25. If that scanner is not listed, then the scanner driver is not being seen or may not be installed.

Once it has been verified that the LiDE 25 is selected, click OK. Next, click the 'Save' button. Check the box for 'Display the Scanner Driver'. Now click the 'Scan' button at the bottom.
The next window that pops up should be ScanGear. If this happens, then everything is installed and the scanner is being detected properly. Attempt to scan or preview.

If there was a particular application you were trying to use and you are still having issues with it, please give those details.

Posted on May 19, 2008

Scott Ellin
  • 558 Answers

SOURCE: unable to scan

Hi Franklin_mus,

Thanks for your posting in FixYa.

It seems to be the problem of the Drivers and incomplete installation. Please uninstall the Scanner and do a complete installation step by step.

Let me know if you need any further assistance from me. Have a Nice day.


Posted on Sep 20, 2008

  • 1335 Answers

SOURCE: how do i install TWAIN drive

Go to
put in your model number and you will find the correct driver for your scanner.
Please make sure to rate this solution. Thanks.

Posted on Jun 09, 2009

  • 1 Answer

SOURCE: TWAIN Driver Error

If the windows image acquisition service is running, stop/disable it and see if this helps with the apparent concurrency problem.

Posted on Apr 16, 2010

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