QTR windows prints from files. Only TIFF files. LR save as file, saves as JPEG files. How to convert so that QTR could be used to print. Add one step. This could be hidden by a GUI calling a command line tool. An Example:

using imagemagick: “convert test.jpg -compress None test.tif”

NOTE: “convert” is a command native to Windows so the above sample has to be modified to “imconvert” for windows users. See the imagemagick site for information on doing this… READ MORE HERE