I think it's a legal issue, honestly. When printers first came out there was a fear that people would just print money and other illegal things, so printer firmware had to print out security identifiers on everything in yellow ink so it can be traceable. That's also why yellow ink always goes out first, and why it complains about yellow ink when trying to only print black and white.
If that's law, then it could be illegal to use firmware that does not have these features, and anyone making fimware that 'just prints' may be held liable.
Thus is all just an educated guess though, but seems plausible.
See- this is a problem. Illegal immigration means one thing, but people hear it and think of a family speaking spanish in the grocery store and assume them to be what 'illegal immigrants' are. People just ascribe anything vagely unknown to them as 'illegal immigrants' and want it gone not realizing that most of the time the people they are imagining are here legally. It's still racism but with a technically safe cover word, but many are hearing one thing and thinking another.
So when everyone is talking about illegal immigrants they could mean completely different things depending on who you talk to.