I see that the scans pick up a lot of writing on the back side of the page. This is usually because the scanner lid has a white background. I accidentally found

I see that the scans pick up a lot of writing on the back side of the page. This is usually because the scanner lid has a white background. I accidentally found that to avoid picking up the back-side writing, you should either scan with the lid open in a dark room, or use a lid with a black background.