SmartForms - Set Printer by default

Hi,

I'm trying to set a default printer when calling the function that allows me to print my SmartForms.

data: output_options TYPE ssfcompop.

output_options-TDDEST = 'CTR7'.

CALL FUNCTION '/1BCDWB/SF00000001'

EXPORTING

OUTPUT_OPTIONS = output_options

TABLES

IT_PALLET_LABELS = ct_label4.

IF SY-SUBRC <> 0.

However, when the funcition is called, the print that appears by default is the predefined user printer. Does anyone know how to set the printer by default?

Thanks in advance.

Nuno A.