The printers/photocopying machine work with cards which can be bought at Celestino Mutis Building's copy centre. The cards can also be bought and topped up in the recharge machines at library's Rest area (Área de descanso.
How to print documents from the library desktop computers
Open the document you want to print and select “Imprimir” (Print).
Make all the settings and click “Imprimir” (Print). A pop-up window will open where you will have to choose a user ID and a password (which can be different from the ones used for the university services).