imprint vs printed matter

imprint

noun
  • The name and details of a publisher or printer, as printed in a book etc.; a publishing house. 

  • A distinctive marking, symbol or logo. 

  • An impression; the mark left behind by printing something. 

verb
  • To leave a print, impression, image, etc. 

  • To mark a gene as being from a particular parent so that only one of the two copies of the gene is expressed. 

  • To learn something indelibly at a particular stage of life, such as who one's parents are. 

printed matter

noun
  • Printed material produced by printers and publishers, including books, magazines, brochures, booklets, publicity material and newspapers, especially in relation to cheaper postage rates on such material. 

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