The document is printed without Unicode characters, how so?

Question

linux

When printing the second page of this document - unicode.org/charts/PDF/U1F600.pdf The
result is the following:
1) Printing from the browser itself

2) And this is from Evince (Linux)

I see this for the first time, I would never have believed it, but I had to believe my eyes.
How can this be understood and how can I print it all the same (do not offer screenshots)?

Answer 1

It is possible that Canon's drivers do not contain new characters from the Unicode version 8.0 table.
Maybe Xpdf converts first to a picture and then the printer slips the page not as a set of unicode characters, but as a target image.