Where can I find epson perfection 1670 flatbed scanner user manual.

You can download the drivers from the epson website. You can finde them here:
http://www.epson.com/cgi-bin/Store/support/supDetail.jsp?oid=23762&prodoid=35836299&BV_UseBVCookie=yes&infoType=Downloads&platform=Macintosh&x=20&y=15

check the power souce is conected properly it may be the bulb or pwer converter inside cheapest fix is to replace the whole unit.

try uninstalling the drivers and then reinstalling them if it doesn't work you will need to replace the lamp in your scanner for information onthis go www.epson.co.uk/support

I had exactly the same problem after moving my scanner to a new location, even though it was locked... it happened blank scanns, so I was about to go get my self a new scanner.
What I did was to get a cotton pad, put alot of alcohol on it and clean both sides of the connection usb cable in/out and then let it dry. Also I unistall all the epson scanner applications and reinstall with the new driver epson 12699.
It worked perfect, try it you have nothing to loose.

please use the link below to download the driver and software for your scanner
http://www.epson.co.uk/Scanners/Epson-Perfection-1670/Drivers-Support?supportLandingPage=true

Just check if you have enough space where you are directing the scanning software to save the scanned images. You may be running short of disc space.
S. Mohan

you will need to clarify your problem, that does not make sense.

make sure you have the proper slide adapter and check your twain settings for the right settings.

go to www.drivers.com
in the coner is a tab that says pc drivers.
go have a look and see is you get it there.

I can not copy scanned pictures from my epson perfection 1670 scanner from windows xp. Everything works from taking the scan and putting into a folder to be copied. When I bring this folder up to copy a blank 4"x4" or so window shows. I've used this scanner for 2 years or more and have had no problems till now.

Epson PERFECTION 1670 AC Adapter driver download