If not, go to c:windowstwain_32, and see if you have a folder similar to cnql60 they copy the full path of the folder into clipboard click windows' start button, then search "environment", then. Canon scanner – unable to open twain source by garth jones recently i replaced my laptop and one of the important things that i needed to get working on it was my canon lide25 scanner.. Select this one and then hit the edit… button to bring up the edit system variable dialog. in the variable value text box, scroll all the way to the right and then add in the path c:windowstwain_32cnq4803 that was determined earlier..
Cannot communicate with scanner.cable may be disconnected may be turned off.check status .scanner driver will be closed.could not open the twain source. make sure there is a valid source for your scanner in the twain directory found in the windows directory.. When i try to scan i get this message: unable to open twain source please check connection then re-start toolbox the connections are tight driver mismatch - the driver of the scanner has forgotten the location of the twain driver because another software has been using it lately.. Select this one and then hit the edit button to bring up the edit system variable dialog. e. in the variable value text box, scroll all the way to the right and then add in the path c:windowstwain_32cnq4803 that was determined earlier..
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