Go to one of the many copy shops on campus, easily recognizable by the word fuyin (复印). If you need a printout of a document, just bring your USB-stick with the file on it with you and get it printed out. If you need a document scanned, they can help you there as well. We recommend the one in the Psychology building, just opposite of the PKU library.
In urgent cases we can help you out at the office. From there you can also send faxes or do a scan (we have to charge you though).
For the vocabulary see „Helpful vocabulary for campus related issues“.