I agree. I hate this printer. What on earth would anyone want with a printer that messes up the margins? And it certainly is not necessary--the old one I had printed in duplex and didn't do that. I bought this specifically so I could do automatic duplex printing. And I need the margins I specify. At the very least, the box should have a "warning label" that tells users who actually want their pages ot look the way they lay them out to choose another printer. I don't care if I never own another HP printer. Obviously the designers/engineers set a pretty low bar when it comes to acceptable printing.