Canon FB620U manual Scanner Appears as an Unknown Device Not a Scanner

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Problems with the Initial Connection of the Scanner to a USB Port

Scanner Appears as an Unknown Device Not a Scanner

Cause 1: Computer or computer operating system is incompatible with the scanner, or the USB interface has not been enabled in the BIOS

Solution: The performance guarantee for this scanner and its software is limited to its operation with computers running Windows 98 that are equipped with a built-in USB port. Computers running Windows 95 with a USB port on an optional expansion card fall outside the limits of the guarantee.

Computers with operating systems that have been upgraded to Windows 98 may have the USB interface setting set to Off in the system BIOS. You must change the BIOS settings to enable the USB interface. Please refer to the manual that accompanied your computer for these instructions.

Cause 2: Incorrectly connected USB cable

Solution: An incorrect connection to a USB hub or another USB device will prevent the scanner from working. Check the USB cables to ensure that they are correctly attached. (See p. 19)

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Contents GuideGuide This page intentionally left blank Organization of the Product Guide How to Use the Product GuideDisclaimer Conventions Used in this GuideTable of Contents Page Compact Footprint Features of the CanoScan FB620UPage About Locations Safety PrecautionsAbout the Power Supply General Handling Precautions Page Setup and Use Uneven or stepped surfaces High-temperature environments Sunlight Scanning Unit Components GuideUSB Connector Placement and Connection Connecting to the Computer Scanner Connected to Another USB Device About the USB Interface Lift the document cover Place the document Positioning the DocumentsPage Smart Button and ScanGear Toolbox CS How to Use the Start ButtonChanging the Start Button Functions Page Transporting the Scanner Lock Switch Position Appendices Troubleshooting Scanner Appears as an Unknown Device Not a Scanner Twain problem message is displayed Windows Installation is unsuccessfulUser’s Guide electonic manual Scanner not identified Problems with the ScannerScanner will not scan Problems with ScanningGlossy color photo will not scan clearly Scan quality is poorCan a Film Adapter Unit be used with this scanner? Stripes appear on scan of publicationWhitened edges on image scanned from thick book Slow scanning speedCare and Maintenance Outer Casing USB Major SpecificationsIndex Mail support via Canon Computer Systems, Inc Canon Technical SupportOE-018AA Canon INC