Canon PIXMA MX870 - Manual (Page 1079)

Specify the printer WEP settings. When changing the password (WEP key), the same change must
be made to the password (WEP key) of the access point.
1. WEP Key
Enter the same key as the one set to the access point.
The number of characters and character type that can be entered differ depending on the key
length and key format.
Key Length
64 bit 128 bit
Key Format ASCII 5 characters 13 characters
Hexadecimal (Hex) 10 digits 26 digits
2. Key Length
Select either 64 bit or 128 bit.
3. Key Format
Select either ASCII or Hex.
4. Key ID
Select the Key ID (index) set to the access point.
5. Authentication
Select the authentication method to authenticate the printer's access to the access point.
Normally, select Auto. If you want to specify the method manually, select Open System or
Shared Key according to the setting of the access point.
Important
If the printer cannot communicate with the computer after the encryption type of the printer
was switched, make sure that encryption types for the computer and the access point
matches that set to the printer.
How to Set a WEP/WPA/WPA2 Key
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Page 1079 of 1127 pages Changing the Settings in the Wireless LAN Sheet