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Epson Expression Premium XP-635 Refurbished User Manual

Page 81

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❏ Stealth SSID

An access point sends out SSID signals at regular intervals that can be searched from network devices. Stealth
SSID does not send out any signals so that it cannot be found in the radio wave signal. If you want to connect to
an access point that uses stealth SSID, you need to enter the SSID manually into your device.

❏ MAC Address Filtering

MAC address filtering is a feature that only allows you to connect to devices for which the MAC address has
been registered in advance. If the device is not registered in advance, a connection will not be established even if
the password is correct.

❏ Wi-Fi Standard

The following are the current Wi-Fi standards. They each have a different communication method, frequency
band, and transmission rate. IEEE802.11b, IEEE802.11a, IEEE802.11g, IEEE802.11n, IEEE802.11ac, and so on.
Each device must be using the same standard to connect by Wi-Fi.

2.4 or 5 GHz is used as the frequency band for Wi-Fi communication. The frequency band has a frequency
width to enable data transmission and is known as a "channel". Each device has to use the same channel of the
frequency band. The printer uses the 2.4 GHz frequency. Bluetooth, microwave, and medical equipment also
use the 2.4 GHz frequency, and sometimes they may interfere with the radio waves if they are too close. In this
situation it may help to change the channel being used.

❏ Multi SSID

When you have several different Wi-Fi standards and securities, you can have SSIDs for each situation. This is
known as Multi SSID. Each SSID is recognized as a different network. Even if devices are connected to the same
access point, you cannot communicate with them if the SSID is different. The printer and your devices have to
be on the same SSID network.

Networks Without a Relay Point (Wi-Fi Direct/Ad Hoc)

You can connect directly to devices that do not use any relay points, such as hubs and access points.

❏ Wi-Fi Direct

Wi-Fi Direct allows you to connect two devices without using an access point. This is a radio communication
standard certified by the Wi-Fi Alliance. By having one of the devices act as an access point in the application,
you can connect directly to another device. Since this uses the same configuration as a Wi-Fi connection, you
can use the same security method.

❏ Simple AP Mode

In Simple AP mode, the printer acts as an access point. Enter the password into the printer's network (SSID)
from a device to connect it to the same network. You can use the network continuously once it has been set
up.

❏ Wi-Fi Direct Mode

In Wi-Fi Direct mode, you can connect Wi-Fi Direct devices using a one-to-one connection. Either the
printer or device acts as an access point. Even though you do not have to enter a password, you need to
manually re-establish the connection each time it is disconnected.

❏ Wi-Fi Ad Hoc Mode

In Wi-Fi Ad Hoc mode, you can connect devices through a radio wave directly without using an access point.
Unlike Wi-Fi Direct, there are no access points even in the application.

Network Guide

Appendix

81

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