I am quite sure, that it is not that way, but:
1. If you use notepad or something similar, it will simply send text codes.
2. If you use something which supports formatting (Word, PDF*) it will embed the fonts in the printer, and then it will start printing.
Consider:
1. Text pages are printed much faster than graphic pages (or at least on older printers with small memory and LPT)
2. If you print a Word document to a PDF printer, after opening the printer, text is still presented as text- you can copy it as such.