That's the problem BetterSense, it seems on this scanner the light source is integrated in the part that scans. It's a cheap second had scanner, a Lifetec LT 9385. Taking out the light sourse and distroying the scanner isn't a big deal, but that would mean I should go for another scanner.
Another downside with this scanner is that it only works on my Win98 PC. And only when it's connected to the USB connection at the front of the pc. I bought this scanner because it didn't need extra power, just USB. My plan was to go outside with the scanner camera and laptop and take pictures, without extra power. The Win98 pc and the powersource it all needs, limits my outdoor activities.
I guess in a short period of time, I have to look for another scanner. But not after I had a bit more experimenting with this one.