Hi Robert,
Thanks for your reply.
In this instance, I am trying to print an A0 sized map onto HP Heavyweight Coated paper with an HP Designjet Z6200 printer. The printer also has a Post Scipt upgrade installed.
A few things in addition: I can create crystal clear PDF's or TIFF images from my ARCMAP session without issue. When I view those onscreen they appear clean and fuzz free. But if I try and *print* those images - I get the described issues happening. Or If I print straight from my ArcMap project I get the fuzzing issues happening.
The very odd thing is that some annotation classes appear fine when printed, yet others print out terribly.
I've also noticed that some polygon layers are printing with a very grainy appearance as well, yet others are smooth and clear as I'd expect. So I've tried a raft of printer driver changes, tweaks, and updates - but all to no avail so far.
It really looks as if the features affected are printing at an extremely low or downgraded resolution for some reason. I will check the Anti Aliasing settings though and see if that helps.