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Use a valid folder
On a Microsoft Windows computer, if you receive a message such as “Destination
Directory Is Invalid” or “Program Folder Is Invalid” during installation, you may not
have read/write permissions to that folder.
Check the cables
Cable type Action
Power cable The power cable is connected between the scanner and an AC
outlet.
Ensure that the power cable is securely connected
between the scanner and a live electrical outlet or surge
protector.
If the power cable is connected to a surge protector,
ensure that the surge protector is plugged into an outlet
and turned on.
Disconnect the power cable from the scanner and turn off
the computer. After 60 seconds, reconnect the power
cable to the scanner, and then turn on the computer, in
that order.
USB cable The USB cable is connected between the scanner and the
computer.
Use the cable that was included with the scanner.
Another USB cable might not be compatible with the
scanner.
Ensure that the USB cable is securely connected between
the scanner and the computer.
For additional USB troubleshooting information, see www.hp.
com/support, select your country/region, and then use the
search tool to find USB troubleshooting topics.
Note On a Macintosh computer, use the Apple System Profiler to ensure that the
scanner is connected to the computer correctly.
Scanner initialization and hardware issues
This section contains solutions for initialization and hardware issues.
Reset the scanner
If you receive an error message similar to “Scanner initialization failed” or
“Scanner not found” when trying to use the scanner:
1 Close the HP Scanning software if it is open.
2 Disconnect the USB cable that connects the scanner to the computer.
3 Turn the scanner off by disconnecting the power cable.
4 Turn the computer off, wait 60 seconds, and then turn it on again.
5 Turn the scanner back on by reconnecting the power cable.
Chapter 2
14 HP Scanjet 3770 digital flatbed scanner
18


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