[matthewtse]

I do that out of paranoia/mistrust for my wifi network, printer, printer software, etc.

It's probably fine to just print it out, but for more sensitive items I definitely write it down by hand.

[Piskvorrr]

It's not as if the printer keeps a hidden cache of printed pages. Except maybe it does...even if the feature was created for entirely benign reasons.

[ant6n]

It’s not as if photocopiers could randomly replace letters or numbers, right? …right?

Or perhaps they could: https://www.dkriesel.com/en/blog/2013/0802_xerox-workcentres...