You log into the page with the RBG ID and the corresponding password.
Then you can upload documents by double-clicking or dragging the file to be printed into the field shown. These can then be printed on the desired printer after logging in. ( one time[[https://wiki.in.tum.de/Informatik/Benutzerwiki/XeroxDruckerKarteEinrichtungen] [register registiration]] of the card or the transponder on the respective printer is required).