Changing WEP Detailed Settings (Windows)

Article ID: ART166680 | Date published: 10/26/2016 | Date last updated: 08/27/2019


Changing WEP Detailed Settings (Windows)




  • This function is not available depending on the printer you are using.

To change the wireless network settings of the printer, connect the printer and the computer with a USB cable temporarily. If you modify the wireless network settings of the computer over wireless connection without USB connection, your computer may not be able to communicate with the machine after modifying the settings.

  1. Start up IJ Network Tool.

  2. Select the printer in Printers:.
    When the printer is connected to the computer with a USB cable temporarily, select the printer with "USBnnn" (where "n" is a number) appearing in the Port Name column.

  3. Select Configuration... in the Settings menu.

  4. Click the Wireless LAN tab.

  5. Select Use WEP in Encryption Method: and click Configuration....
    The WEP Details screen is displayed.

  6. Change or check settings.
    When changing the password (WEP key), the same change must be made to the password (WEP key) of the wireless router.

    1. WEP Key:
      Enter the same key as the one set to the wireless router.
      The number of characters and character type that can be entered differ depending on the combination of the key length and key format.


      Key Length



      Key Format


      5 characters

      13 characters

      Hexadecimal (Hex)

      10 digits

      26 digits

    2. Key Length:
      Select either 64bit or 128bit.

    3. Key Format:
      Select either ASCII or Hex.

    4. Key ID:
      Select the Key ID (index) set to the wireless router.

    5. Authentication:
      Select the authentication method to authenticate the printer's access to the wireless router.
      Normally, select Auto. If you want to specify the method manually, select Open System or Shared Key according to the setting of the wireless router.

  7. Click OK.


    • If the printer cannot communicate with the computer after the encryption type of the printer was switched, make sure encryption types for the computer and the wireless router match that set to the printer.


    • Changing the network settings with the USB cable temporarily may switch the default printer. In this case, reset Set as Default Printer.


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