I own a Z3200 for 5 months now. Believe me, the fan runs, and you'll hear it. I work in a 18 m2 room, so I'm close to the printer. Nevertheless I might work for hours without noticing the whisper of the fan. One get used to it. I got prints from the Z3200 I could only dream of, I have no problems whatsoever with the machine and if this little sound stays the only "problem", I consider myself a lucky man.