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Chapter 1 Product Overview
Printing Using Multiple Interfaces
The printer offers multiple interfaces and allows you to use all of them without limitation. You can use this
function to temporarily connect a smart device to a nearby printer and print.
The printer provides each interface with an independent receive buffer and switches the active interface
depending on the priority, while handling data in each receive buffer.
You can set one interface for the main connection. Data received from the main connection interface is handled
with the highest priority.
By default, the interface that receives the first data transfer is set as the main connection interface; however, you
can select the main connection interface in advance.
When the receive buffer for the active interface becomes empty and a preset time period has passed, switching
to another interface is enabled, and an interface that receives print data becomes active.
• You cannot use wired and wireless LANs at the same time. When a LAN cable is connected, wire-
less LAN is disabled.
• When you do not use the Bluetooth function, set the Bluetooth security level to "Middle" or
"High" to prevent unauthorized access to the printer over Bluetooth. You can change the secu-
rity level by using Epson TM Utility, TM-m30III Utility, or in the Interface Setup mode.
You can select the main connection interface and set the time to enable interface switching from
the software settings. For details on software settings, see "Software Settings" on page 65.
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