Press the [Menu] key, and then select setting items using the [ ] or [
] key.
Log in as the network administrator from the printer's control panel.
Select [Security Options]
Press [OK]
Select [Network Security Level]
Press [OK]
Select [Level 0], [Level 1], [Level 2], or [FIPS140]
Press [OK]
If the confirmation screen appears, select [Exit].
Press the [Menu] key.
Log out.