there was a slight degradation in image quality with the FAXes as stored. This was enough to take some barely readable text to be completely unreadable
This may answer your question about setting document resolution. Of course, higher resolutions will increase file size.
There are likely improvements in monitor screen resolutions that may have occurred over the past 5 years. I certainly can read documents on a 27" LCD on my desk better than on the Motion 10" tablet I carry into the rooms.