Canon MB5400 Series Online Manual page 895

To communicate with a wireless router that uses automatically generated WEP keys, you must set the
printer to use the key generated by the wireless router, entering it in hexadecimal format.
◦ For Windows:
When the WEP Details screen appears after you click Search... on the Protocol Settings
(Wireless LAN) screen, follow the on-screen instructions to set the WEP key length, format, and
the number.
For details, see If WEP Details Screen Appears.
◦ For Mac OS:
Normally, select Auto for the authentication method. Otherwise, select Open System or Shared
Key depending on the wireless router's settings.
When the WEP Details screen appears after you click Set on the Wireless Routers screen,
follow the on-screen instructions and set the key length, the key format, the key number, and the
authentication method to enter a WEP key.
For details, see Changing WEP Detailed
Note
• If the printer is connected to an AirPort Base Station via LAN:
If the printer is connected to an AirPort Base Station via a LAN, check the settings in
Wireless Security of AirPort Utility.
• Select 64 bit if WEP 40 bit is selected for key length in AirPort Base Station.
• Select 1 for Key ID. Otherwise, computer will not be able to communicate with printer via
the wireless router.
Settings.
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