I received my Z3100, 24" on Monday. The installation (on Mac OS) went smooth (??, I had a faulty R/PK print head, HP overnighted and even called me next day to see how I was doing), and it was up and running by late Tuesday. It had the latest firmware already installed.
I was pleasantly surprised to see the comparison between EP4000/ImagePrint v6.0 and Z3100.
Since I was using ImagePrint, I have to learn how to use PSCS3 Print command, and so far I could not figure out how to print glossy paper without borders. Any help will be appreciated.