How to Change / Set a Default Printer in Windows 7
Instructions for setting a default printer in Windows 7.
1.) Bring up the Start Menu and select "Devices and Printers" from the right hand column.
2.) Under the Printers and Faxes section, look for a printer object that has a green circle with a white check mark on it. This is your current default printer.
3.) To change to a new default printer, right click on the printer object you would like to be your default and select "Set as Default Printer".
4.) The green circle with the white check mark should now appear on the new printer object (and be removed from the printer that was previously selected).