@Mic_Impero
Thank you for your reply,I saw the update in the changelog so it should just be a case of waiting until the IT department at my college have time to install the update (I don't have full admin privileges so I can't do it myself).
Was there any further progress on this?
I've just been given a new Mac laptop (running MacOS 10.11.6) and Impero 5325 rev16313, and I'm having the same issue with printing.