How to print:

Step 1:

In your application select File > Print command. Select the priPrinter from the Print dialog box and click Print or OK.
MS Word Print Dialog

Step 2:

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

Step 3:

Click Print button in order to print your pages to a physical printer. Or select File > Print command for more options.

For more infomration take a loot at Getting started guide.