Canon CanoScan  LiDE 70 Flatbed Scanner Logo
Posted on Sep 01, 2008

Error message When I try to scan with my CanoScan LiDE 70 a message comes up that says: "Unable to open TWAIN source.Please check connection then restart toolbox." I've checked the connection.Even tried a new cord.When I connected the scanner to another computer and it worked fine.Any suggestions?

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  • Posted on Sep 30, 2008
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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 :-)

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