===== Printer on the 5th floor (room 504) =====
HP LaserJet Enterprise M506. 134.157.132.100.\\
Black and White, two-sided. To activate two-sided printing on MacOSX, one must check the box “duplex printing unit” in printer's settings.
 
===== Printer on the 4th floor =====
HP Pagewide MFP E77650. 134.157.132.111\\
Color, two-sided.\\
It is also a scanner and a copier (bring you own USB drive).

===== Other scanners =====
There is another scanner in office 518; bring you own USB drive.