Check Selected Wireless Router

Check 1 Is the wireless router to which you want to establish a connection selected?

Depending on the radio environment, other wireless routers in your neighborhood may also be detected. Check that the SSIDs set for the printer and the computer are the same. To do this, click [Network Information], and then on the [Network Information] screen that appears next, see printer's SSID in "(27)SSID" and computer's SSID in "(61)SSID Info."
When using a USB interfaced printer, if you cannot obtain the network information in [Network Information], connect the printer and the computer with a USB cable, and then obtain the information again.

Check 2 Is the wireless router in stealth mode?

If the stealth mode is on for the wireless router, temporarily disable this mode, and then execute the wireless router detection.
The description for the stealth mode may vary depending on the wireless router you use.
When using a USB interfaced printer, connect the printer and the computer with a USB cable.

Check 3 Is the wireless router in ANY denial mode?

If the wireless router is set to deny the access using the SSID ANY, enter the information that matches the settings for the wireless router.
The description for the SSID ANY denial mode may vary depending on the wireless router you use.

Check 4 Is your computer set for automatic connection to the network?

Your computer may have been automatically connected to another wireless router found in the connection area.
In this case, reconnect your computer to the wireless router that you want to use. Alternatively, refer to Windows Help, and disable automatic connection from the wireless network management or change the network priorities.

Check 1 Is encryption enabled on the wireless router to which you want to connect?

If WPA-802.1X or WPA2-802.1X is set as the wireless router, this printer cannot connect to the wireless router. Change the setting for the wireless router to WEP or WPA-PSK (Personal), and then restart the wireless router.

Check 2 To check whether encryption is enabled on the printer, perform a test print by referring to the user's guide that comes with your printer, or click [Network Information] and see the setting for "Encryption" of the "Wireless LAN" item.

When using a USB interfaced printer, to change the printer information, connect the printer and the computer with a USB cable.