If you are having problems printing out pdfs in the Fell cluster you may wish to try a different cluster.
I have just received an email from ISS confirming there is a problem printing certain pdfs in the Fell cluster. As ISS says:
"Re following query, we have seen some problems with certain pdf files on the printer's in the fell cluster. We believe this is due to a firmware issue on these printers. Unfortunately the HP tool for upgrading large clusters of printers (web jetadmin) no longer runs on our Linux system, so we are for waiting for a Windows Server VM to be created before we can upgrade the FELL printers. We hope to have this completed in the near future, I will test your pdf again when this has been done and let you know the outcome."
So, if you run in to problems please go and try another cluster.....