gscan2pdf changig geometry creates error

[jasonmchristos]

gscan2pdf changing geometry

I have a Fujitsu ScanSnap S1500

I attempted to change the geometry. By changing the page size, after changing it when I try to scan a document I get "invalid argument" so then I try to change the page size back to default by clicking Edit in the Paper Size dropdown menu, select US Letter hit Apply and I get " The following paper sizes are too big to be scanned by the selected device: US Legal, A4 " Resulting in my scanner bieng unusable.

[jasonmchristos]

I decided to switch to simple scan since no one seems to be out there to help with this problem.