The printer parameters will always rule regardless of what you set in FTM. The bottom line is that some times FTM talks to the Printer driver, but it is not always the case.
Go into the printer driver and set the parameter you expect. Remember also that some printers have basic unchangeable default settings for margins and headers and footers. What they are depends of the printer itself. Depending on the drive mechanism, the headers and footers must be greater than other printers with other means of feeding the paper.
Remember just because you make the changes in one driver it will not affect the parameters for the driver of a different printer.