If the papercut tab does not open after pressing print then check if the program is still running by to the bottom right of the screen and pressing the up arrow icon to display the different programs that are running.
If the paper cut icon is not there then this means it has to be started again. This can be done by going onto the start menu then navigating to the all programs tab.
open all programs then pinned near the top of the menu would be Papercut.
open the program up then a tab will open to show you the details of the file you are trying to print then press print.