Printing on the client can be activated via this checkbox. 

Behavior in SiteKiosk

On Windows clients, you can choose whether to print without user interaction, using the SiteKiosk print dialog or the Windows print dialog.

Monitoring

To allow SiteKiosk to make use of its full printer monitoring capabilities, features like limiting print jobs require a special printer setup if the printers you are using are network printers. 

A comprehensive description of how to set up your printers can be found here.

Margins

The margins to the page border can be specified here in inches.