Question about Canon CanoScan 8600F Flatbed Scanner

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I downloaded a net program that screwed up all my visual programs (photoshop, ACDSee). I removed the old programs and downloaded replacements. But when I tried to use the scanner it said, "Unable to select TWAIN source." What is a TWAIN source and how do I correct this problem?

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Most likely you removed the driver or it was corrupted when you had the other problems. TWAIN is the standard for the driver that lets the hardware talk to software for this scanner. (Some newer scanners use WIA which is a Windows (Microsoft) protocol.)

To get the scanner to work, uninstall the current driver and unplug the scanner's data cable. Go to the Canon support page and download the driver and software (Toolbox if you want it) for your OS: http://www.usa.canon.com/cusa/support/consumer/scanners/canoscan_series/canoscan_8600f#DriversAndSoftware . Then plug in the scanner.

I hope this helps.

Cindy Wells

Posted on Sep 07, 2010

  • gabi925 Mar 18, 2011

    Thank you, Cindy!
    I have done all you have written and it works!
    Gabriela

  • Cindy Wells Mar 18, 2011

    You're welcome.

    Cindy Wells

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