I have to totally disagree it's not an invasion of privacy it's only use is for tracking down counterfeiting. i work for 5 years with Xerox and Canons copy machines
That is how I recall it when these machines first came out. It was in the news that there was concern about counterfeiting and that our Bank of England was in consultation with the manufacturers to find ways of combatting it. I would imagine that other governments/national banks did the same.