4f4e9508_scanned_documents___D__Kriesel__What_happened
[Date] From this day on [What happened] 
Xerox has a decentral way of selling. As a result, there is no central customer list. Consequently it is unclear how many devices have been patched yet. I would suspect there are still hundreds of thousends devices out there, producing subtly incorrect documents for 9 years now. So: Spread the word.
Xerox scanners/photocopiers randomly alter numbers in scanned documents · D. Kriesel
What happened