In order to print from your chromebook you will need to add printers to your account. You do this by clicking on the links provided below.
The first link is for the Library printer and the second for the printer in Room T11.
The links will take you through a couple of steps where you will have to accept the invitation. Make sure go go through the whole installation wizard.
You will have to have money on your printing account before you can print.
Room T11 Printer: