There seems to be a workaround: File -> Scan -> Tab Scan options -> change the options. (I do not remember, which options I had changed). With this change the scanner is working with gscan2pdf.
There seems to be a workaround:
File -> Scan -> Tab Scan options -> change the options.
(I do not remember, which options I had changed).
With this change the scanner is working with gscan2pdf.