No longer possible to save or print PDF files from browsers

I am suddenly having a problem saving or printing PDF files from the browser, but it extends to all browsers in OS X. I can view the PDF normally but if I try to print as PDF all it shows is two black pages. Then if I try to save as a PDF it tells me the document could not be exported. I just tried this with a PDF and the only way I could get it was via Windows running on Parallels. I've already tried resetting the printer by removing and adding it again with the alt key pressed but this made no difference.

This all started about a week or so ago and I just ignored it at first thinking it was something wrong with a particular file but now it's happening in all cases. I'm running the latest 10.7.3 on a new Mac Pro and everything is up to date. Does anybody know what might be causing this?

Thanks

Ashley