Why don't you buy your own printer, which you could then take home? They are not so expensive in China, after all?
And the bit about students visiting, why on earth would you want them visiting your flat? Unless there isn't something you want us all to know...Turnoi's answer was quite reasonable, there may be security issues with the provided pc you may not expect, I wouldn't trust it.
Oh yes, Turnoi, I always take a laptop wherever I go. However, I'm always being visited by students and they often ask if they can use the computer, which usually means QQ. Now QQ can produce many viruses and I wouldn't use it but I don't mind too much if they are dumped on the desktop computer. Also if i want to print some information for the students i use the latter as the work horse.