4f4e9508_scanned_documents___D__Kriesel__What_happened
[Date] July 25th [What happened] 
Told Xerox about number mangling in pixel data. During the next days, neither the Xerox support levels we had phoned, nor the Xerox helpdesks visiting, did know that character substitutions could occur at all and were amazed to see this. The Xerox helpdesk guys even set out replicating the “bug” at their devices and managed to do so. I think this is important as it depicts that I first went to Xerox and gave them about a week of time, before I posted it on my blog. Later I was to learn that the number mangling was known to Xerox.
Xerox scanners/photocopiers randomly alter numbers in scanned documents · D. Kriesel
What happened