Epson LX 300+II Reference Manual page 92

If USB Printer or EPSON LX-300+II does not appear under
Other devices, click Refresh or unplug the USB cable from
the printer, then plug it into the printer again.
4. Under Other devices, select USB Printer or EPSON
LX-300+II and click Remove. Then, click OK.
5. When you see the following window, click OK. Then click
OK again to close the System Properties dialog box.
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Maintenance and Troubleshooting