copy shop vs printing house

copy shop

noun
  • A shop that offers photocopying and printing services. 

printing house

noun
  • The building where printing occurs. 

  • An institution or commercial company chiefly devoted to printing. 

  • Synonym of printshop: a place to make personal copies. 

How often have the words copy shop and printing house occurred in a corpus of books? (source: Google Ngram Viewer )