I find printing in Lightroom is somewhat a nuisances because I have no control over scale factor. It shows the @ppi I print, but compared to e.g. Photoshop 2015 cc, 'Print tool' by Roy Harrington Photography or Mirage rip, it really lacks professionalism, and I really don't see any reason why? Printing in Lightroom or Photoshop should at least be the same....Am I missing something?
Please go through the below article for brief information about print from Lightroom.