I am not sure that this will work but you can try it anyway;
Open Control Panel, Printers. Right click select add a Printer, in the new window select add a local Printer, select Use an existing port.
(Right click on your existing Printer, select Printer properties, select Ports and have a look at which port your exiting printer is connected to)
Install Cont. Select the Port that you have just located and click next, Install the
driver, Click next, Type the name you want to use,(it must obviously be different to your default Printer) Click next, you may be asked about sharing the printer, Click next, you can now Print a test page, Click finish.
You will now have two Printer icons.
I hope this helps