For anyone using Firefox Browser, this is where to turn these options on & off.
Open your Browser, then click File>Page setup from the top browser menu, then select the Margins & Header/footer tab.
You will see the options available to change what does or doesn't display on the header & Footer of the page when you print.
The IE browser has a similar setup page, just Open your Browser, then click File>Page setup from the top browser menu.
Then you will see the same options as Firefox, change them as you desire.
Then the URL text at the top of Order & Shipping invoices will not appear.