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Try the following: - Make sure the Epson Stylus NX400 is turned on and securely connected to your computer or USB hub.
- If the Epson Stylus NX400 is connected to a USB hub, make sure it’s connected to a first tier hub (the hub closest to the host computer) when more than one hub is connected to the computer.
- Try restarting your computer.
- Make sure you installed all the software correctly for Windows or Macintosh.
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