Epson TM-U220-i Technical Reference Manual page 51

Connecting the unit directly with the product
Install the wireless LAN unit to a USB port of the product.
Using the USB extension cable
1
Attach the included rubber cover to the connector of the USB extension
cable into which the wireless LAN unit will be inserted, to prevent the unit
from coming off.
2
Insert the wireless LAN unit into the connector of the cable.
Adjust the position of the rubber cover so that the description on the label on the back side of
the wireless LAN unit is not covered.
Chapter 2
USB port
Setup
2
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