> Don’t we have something similar with how pretty much all copiers/printers wont print currency? The short answer is yes, but I'm not sure how similar. Copier

> Don’t we have something similar with how pretty much all copiers/printers wont print currency? The short answer is yes, but I'm not sure how similar. Copiers/printers that refuse to print money detect a pattern designed in the original physical currency note (as with the EURion constellation [1], with emphasis on the fact that currency is printed by the government) or a digital watermark placed in digital images of money (as with the Counterfeit Deterrence System voluntarily developed by banks [2]). 18 U.S. Code § 474A makes controlling or possessing "any essentially identical feature or device adapted to the making of" counterfeit money a felony [3]. What happens if I make a single "simple" printer for my own use that prints anything I tell it to because I "simply" didn't include any scanning or blocking functions in the printer design, and I never intend to print copy/counterfeit money? Is such a printer "adapted to the making of" counterfeit money? I don't know. If I instead make or transfer such a printer for any purpose other than my own personal use, the answer might move toward yes, but maybe it was already yes. Does the US require all copiers and printers to include at least one feature that prevents copying or counterfeiting of money? I don't know. [1] https://en.wikipedia.org/wiki/EURion_constellation https://en.wikipedia.org/wiki/EURion_constellation [2] https://en.wikipedia.org/wiki/Central_Bank_Counterfeit_Deterrence_Group#History https://en.wikipedia.org/wiki/Central_Bank_Counterfeit_Deter... [3] 18 U.S. Code § 474A - Deterrents to counterfeiting of obligations and securities - https://www.law.cornell.edu/uscode/text/18/474A https://www.law.cornell.edu/uscode/text/18/474A