Given that the poster said "not in the US," this seems plausible to me. The detectors probably detect dollars and Euro, and maybe a few other high-profile currencies like yen, UK pounds, etc. But do you really think Epson would bother including fingerprints for Lithuanian litas or whatever?

FYI, the notes only need to include the EURion constellation; the software doesn't need a database of currencies. http://en.wikipedia.org/wiki/EURion_constellation

Still the litas seems to be unprotected, as you said.

So in theory one could make a document un scanable by putting the EURion constellation in it?

This wasn't always the case.