I’m sorry, but the theme does not contain any print styles. You will need to add those on your own via your child theme.
I don’t suggest outputting styles directly into the HTML footer. The best way would be to create a dedicated print stylesheet and put all your print styles there. You can then enqueue the stylesheet using WordPress native function, the wp_enqueue_style() (there are code examples of how to use that function in your child theme‘s functions.php file).
You can read more about print stylesheet in these resources: