For printing your table you need to select "Print View" from the cog menu:
Ninox exports your current view as a .pdf-file which is now ready to print. If you wouldn't like to receive all your columns you easily can hide them and afterwards they are not going to be printed.
Optional it is possbile to receive a .html-file or to change the font size via the following path: Please activate the Administration mode in the top right corner. Subsequent you need to go to the overview of your project. After selecting Options in the menu bar you can adjust the font size and decide whether you would like to export a .pdf- oder .html-file.