As per HP's website: There is a bug in Ghostscript 6.53 (gdevijs.c) which swapped the top margin with the bottom margin
Created attachment 642 [details, diff] ghostscript bug fix
Can you get me the related URL? Thanks!
Sorry about that. http://hpinkjet.sourceforge.net/install.php It's mentions it in section 5c.
Thanks! I'll try to fix this over the weekend.
I just finished the cvs commit for 6.53-r2, which fixes this bug and performs some updates.