SAP SCRIPT ALIGNMENT

All,

I am developing a form with SAP Script. In the header window (it is a single window using the almost entire width of page format DINA4)i am using three character formats for printing heder lines ofr ex: helve 8, helve 10 Bold and Helve 14 bold. When i see the print preview the alignment is perfect. But when i print the page alignment of header window is distorted. Why is it so? There is some other form using different character formats developed in smart forms. Here print out is coming properly. is this the problem with SAP script. If so what is the work around for this?

Rakesh