How to Connect a USB Printer to a Serial Computer Port
Computer printers come in two main variants--USB-compatible printers and Serial-port compatible printers. Connecting a USB printer to a computer that only has a Serial port would seem an impossible proposition, but it can be accomplished with the use of a USB to Serial port adapter. This is a simple device that will allow your USB printer to interface with a Serial port.
Instructions
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Plug your USB printer into the USB end of the adapter.
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2
Connect the Serial port end of the adapter to the Serial port on the back of your computer.
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3
Start your computer to auto-detect the printer, completing the connection.
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