Login to the printer with your print release PIN (If you do not know it you can find it using this guide here)

To release every job in your queue click "Print all" along the secondary top bar

To print individual jobs please click "Print release" on the home screen (Icon on the far left of the 3)

To select specific jobs please click the checkbox along the left

Then click print in the bottom right

Remember to log out after you've finished, via the logout button in the top right