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Problems with the Initial Connection of the Scanner to a USB Port
Scanner appears as an “Unknown Device” not a “CanoScan FB630U” (Windows)
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 (includes Windows 98 upgraded from Windows 95). 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
[...because it needs more power...] message is displayed (Macintosh)
Cause: Scanner is connected to a keyboard or a throughput USB connector on another
device (scanner not supplied with an efficient 500 milliampere (mA) power)
Solution 1: Connect the scanner directly to the USB connector on the computer
Solution 2: Connect the scanner directly to a self-powered USB hub with a 500 milliampere
(mA) bus power supply
49


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