Oki MC853 User Manual page 1094

If a wireless LAN access point supports WPS, you can connect to the wireless LAN with the
WPS button.
Selecting a Wireless LAN Access Point from the Operator Panel to Connect
If a wireless access point does not support WPS, you can specify a wireless LAN access
point you want to use from the wireless LAN access points that the printer detects to
establish a connection.
Setting from the Operator Panel Manually to Connect
Set the wireless LAN access point information (the SSID, encryption method, and
encryption key) manually to connect to the wireless LAN.
Checking That Connection is Established Correctly
This section describes the procedure for checking by using the printer whether a
connection to a wireless LAN is properly established.
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