Can I send a fax from anywhere in the libraries?

Yes: from the Copy Center on the entrance level (3rd floor) of Moffitt Library:

• Moffitt Copy Center, 321 Moffitt Library
  
  For current hours, see our Library Hours page
  under "Copy Services"
   
  phone: (510) 643-7427
  fax:  (510) 643-4321
  e-mail: copycenter@library.berkeley.edu