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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 [Menu] twice.
Log out.
