fax vs offprint

fax

noun
  • a document sent, or received and printed by a fax machine 

verb
  • To send a document via a fax machine. 

offprint

noun
  • A reproduction of a single article from a journal or similar publication. 

verb
  • To reprint as an excerpt. 

How often have the words fax and offprint occurred in a corpus of books? (source: Google Ngram Viewer )