Problem with SapScript Form : Always print in portrait

I've deloped 1 sapscript form with customized page format (ZX.....). it's in landscape format.

And I print it via SAPLPD with printer Epson LQ-2090. but it always print in portrait.

one of my friends said that i have to add new page format for this printer in Windows (control panel->printer and fax->select epson printer ->propoties) but there is no option to add page format.

any other ways to solve this.

thanks