You can print the screen either with the Print Screen key (this might not work properly in the HTA environment) or with the Print Icon found in the Action Icons area of the status bar.

 

Once you have triggered the print with the key or clicking on the icon, you will see the Windows Print dialogue...for best results, select landscape printing as this reduces the chance of lines on the screen wrapping and ruining the layout of the screen.

 

Once you have selected landscape mode for your print, you should be able to print future screens from the same browser session without requiring another select of the landscape mode in the printer dialogue.