Step 1:
In your application select
File >
Print command. Select the priPrinter from the Print dialog box and click Print or OK.

Step 2:
priPrinter application will appear. Now you may preview pages, change layout, or do anything else... For instance you may
crop pages.

Step 3:
Click
Print button in order to print your pages to a physical printer. Or select
File >
Print command for more options.
See video demonstration 
For more information take a loot at Getting started guide