Output type (call Smartform) Prints a Extra blank page

Hi gurus help me out,

Output type (call Smartform) Prints a Extra blank page .

The Smart form has only one window and the output is only one page.

In spool it is showing one page (page 1 of 1) but it prints one extra blank page in the printer.

i.e. it is printing 1 exact output page + 1 blank page.

Thanks ... in advance.