dw_1.print(false) creating blank postscript file

ll_printed = dw_1.print(FALSE)

IF ll_printed = 1 AND FileLength64(gs_TmpFile) > 100000 THEN

ls_run =gs_GhostScript_Path + "gswin32c -q -sDEVICE=pdfwrite -sOutputFile=" + gs_TmpFile + ".pdf " + " -dBATCH -dNOPAGEPROMPT -dNOPROMPT-dQUIET -dNOPAUSE" +' ' + gs_TmpFile

END IF

I got this script where I check the file length, I always generate a PS with 11kb. If i continue to create a pdf. it will create a blank PDF. Sometimes It actually print the correct information sometimes its blank.