In QR Print/Export menu there is an option "Layout" where you can set the lines per page. For continuous labels (depending on what version/release of QR you are using) you must set this to be "0" or "99". 99 for older versions (prior to 6.5A, I believe) and 0 for 65A.

The reason you are getting a blank page is because you have the lpp set to 72, so QR then performs a form feed before printing the next page of information.