self.print_length_field (printer, "paper-width", self.page_width)
self.print_length_field (printer, "paper-height", self.page_height)
self.print_length_field (printer, "top-margin", self.top_margin)
self.print_length_field (printer, "paper-width", self.page_width)
self.print_length_field (printer, "paper-height", self.page_height)
self.print_length_field (printer, "top-margin", self.top_margin)