Samsung fixed this problem with versions 3.xx of the drivers, so it is strongly recommended that you install one of those versions instead of versions 2.xx. If you do so, you won't need the files in this page, as it will work correctly right away.

The Samsung SCX-4200 is a multifunction device. Versions 2.xx of its Linux drivers have a defect: the user has to run with root permissions to be able to scan. That is very dangerous, so I modified the (binary only) Linux driver to avoid that.

However, if for some reason you need to use versions 2.xx, I have made available the fix for version 2.00.95. I don't use the device anymore, so I cannot prepare fixes for newer versions. Please don't ask me for them.