If more than one printer is connected to your computer, you can choose one to use by default. Choose the printer you will use most often. That way, when you print using Windows or your programs, you won't have to select a printer each time. You can change the default printer at any time and you can still select other printers for occasional print jobs.
Open Printers by clicking the Start button , clicking Control Panel, clicking Hardware and Sound, and then clicking Printers.
Right-click the printer you want to use, and then click Set as Default Printer. A check mark is displayed on the printer icon to mark it as your default printer.