Since I installed Ubuntu 11.10, printing is a disaster. I did not have the problem with Lucid Lynx (Ubuntu 10.04), but maybe it just comes from the fact that someone else had installed it for me, and possibly it configured better.
When I print a pdf, even 2 pages, my printer (SHARP MX 2300N) stays in rippen for hours. "Rippen" is a German word, not really sure how to translate. Google translate says, The English equivalent is "Rib". And eventually, sometimes, the pages finally get printed. But in between my whole floor is very angry because they also need the printer. Additionally, I don't always have the whole day for waiting for my pages.
I remember that when printing I used to be asked if I wanted to reduce transparency effects, which does not seem to happen anymore after I installed Ubuntu 11.10. Is there any connection? Not sure, because I don't think it was for pdf files.