Press the 'Add a printer' button at the top of the above window and Windows will start searching for printers. When you plug the printer in and switch it on the device will be reported as unspecified and will report the COM port number as shown below. Go to your Windows Control Panel and open Devices and Printers. This dip switch step will create a virtual serial port such as 'COM8'. This puts the printer in 'Vendor Class' mode as opposed to 'Printer Class' mode so when you connect the printer and switch it on Windows will not recognise it as a printer and we'll have to add it to the list of devices as a printer. In the set of 8 gently push number 1 and number 5 towards the numerals printed below, into the off position. When you remove this plate you'll see two sets of dip switches, a set of 4 and a set of 8. Underneath the printer is a small base plate fastened with a small Phillips screw as shown below. For this you'll need a small Phillips screwdriver. The first step is to set the printers dip switches. How to Setup The Star TSP650 USB Printer on Windows