I have a pdf that I was printing recently, and on the final printout there is a single character that doesn't print. It is the greek letter phi, and the pdf was built with pdflatex. The phi shows up in every pdf reader I have tried, and if I convert to a ps using
pdftops before printing that solves the problem. Also, I sent the pdf to a buddy who has a very similar machine (Ubuntu 12.04 64 bit, with the same printer drivers), and he was able to print it (to the same printer) and the character showed up.
Clearly I have a workaround, but I'm more curious as to where I should be looking to figure out what is causing this bug? What is the printing "toolchain", and where could it be going wrong?