Sap Script : Fax Issue

Hi,

I am using a SAP Script "ZSCRIPT" to issue a fax output with output type "ZABC".

While I issue a print preview, the font family used in the Script is not reflecting. Some default font family & size is seen. I have tried changing the font in all possible ways ( by creating a new paragraph format & by creating a character format etc..).

Is this something common, that the font for a FAX can't be changed?

Thanks in Advacne.