4f4e9508_scanned_documents___D__Kriesel__What_happened
[Date] August 9 [What happened] 
With Compression “higher” (even advised in the Xerox press statements) and an even more generous resolution 300 DPI I reproduced number mangling on a Xerox device. As I think this is a big deal as anyone could be affected, I told Xerox and wait until they confirmed to see number mangling with the same settings, too. They confirm, and after that I wrote a detailed blog post about this.
Xerox scanners/photocopiers randomly alter numbers in scanned documents · D. Kriesel
What happened