On Sun, 21 Jul 2019, Jason T via cctalk wrote:
I don't know about the ScanSnap specifically, but
I suspect that
1200dpi mode may be interpolated, not true optical 1200. In either
case, I've rarely seen any great benefit to using >600, at least on
any scanner I've used (my main workhorse now being a Fujitsu
fi-5750C).
It's like the difference between laser printing and real typesetting.
'course many people can't see the difference.
Below 2400dpi, the characters in the text are not as smooth.
Even 300DPI scans of 300DPI are unlikely to be lined up, to keep from
getting degradation.