I've attached a sample of two pdf print outputs
Both are from the same pdf, and printed on the same printer and from computers on the same network. One is a Windows 7 and the other is a Windows XP.
It's not a great photo, but you can see that the font and spacing is completely different, which I could partially understand but you can see that the colour is also very different.
I'm guessing that there is something incorrectly set up but could do with some help solving this, because one of our clients complained a while ago about the same problem and it would be good to understand the root cause and provide a permanent fix