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Firewall

A firewall is a function of the security software installed in the computer or operation system for computer, and is a system that is designed to prevent unauthorized access to a network.

Precautions When Firewall Function is Enabled

  • A firewall function may limit communications between a printer and a computer. This may disable printer setup and communications.
  • During the printer setup, you may be prompted to enable or disable communications, depending on the firewall function of the security software or operation system. If so, choose to enable communications.
  • When using IJ Network Device Setup Utility, you may be prompted to enable or disable communications, depending on the firewall function of the security software. If so, choose to enable communications.

  • If you cannot set up the printer, temporarily disable the firewall function of the security software or operation system.

    Important

    • If you disabled the firewall function, disconnect your network from the Internet.

  • Some applications (like the network configuration software) override firewall settings. Check the application's settings beforehand.

Note

  • For the operation system firewall settings or the security software firewall settings, refer to the instruction manual of the computer or software, or contact its manufacturer.