Epson C32C824461 - UB R03 Print Server Technical Reference Manual page 22

Limitations for Transmission
• The transmission of the radio waves cannot be stopped. The only way to stop the transmission
of radio waves is to turn the TM printer off.
• When printing a high volume of data such as graphics, the print speed is slower.
Limitation for Customer Display Use
When the UB‐R03 is connected, the DM‐D connector on the TM unit cannot be used.
Limitations Using USB Connector (Wireless Setting)
When the power supply is turned on under the following conditions, the wireless LAN function
of the interface does not operate.
• The UB‐R03 is connected the computer with a USB cable.
• The TM printer is off‐line. (No paper or the cover open, etc.)
Unplug the USB cable or correct off‐line condition at the TM printer to operate the wireless LAN
function.
The USB connector (for wireless setting) can be used only for setting to the network parameter.
It cannot be used other purposes, such as printing or setting the TM printer.
Restrictions on Using the Ad-Hoc Mode
Setting the Encryption Type
With the UB‐R03, WPA/WPA2‐PSK is not available in the Ad‐Hoc mode.
Although using the WebConfig function allows the Encryption Type "WPA/WPA2‐PSK" to be
selected in the Ad‐Hoc mode, this setting actually is ignored. (In fact, the setting is the same as
"no encryption.")
Dynamic Status Sheet
When using the UB‐R03 in the Ad‐Hoc mode, printing a dynamic status sheet is subject to the
following restrictions:
• Even if there is no host computer to connect to, "Connect" appears as the Link Status.
• Between power‐on and the time when the printer to connect is found, "0dBm" appears as the
Signal Level. If the host computer connected to the TM printer discontinues communication,
the value that had been obtained immediately before discontinuation of communication is
held/appears.
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