The Printer Forms list box allows you to specify a form
  for the print queue. The highlighted choice will be
  used unless you select another option.

  To use the Printer Forms option:

  1. Move the pointer to the Printer Forms box.

  2. Choose an item and click on MB1. The form is then
     highlighted.

  3. Click on the OK button.

  Note that you must choose the appropriate form to
  produce landscape output.