That's an interesting issue, it depends on the printer settings. When you go to print, open properties. There are many settings that vary according to the printer manufacturer. What printer do you have?
Did you install the original printer software, that comes on a CD, with the printer?
In the word window, click file, click print. Is there any scale set to the print job? Is the paper size correct? Is the zoom set to normal?
Click properties, click page set up, is normal sized printing set?
There may be some help if we can find your printer documentation by make and model number, but as it goes, there's a whole bunch of variations depending on the model of printer.