Disabling HTTP Communication
It is recommended to disable HTTP communication when using only the USB connection or when not using functions that require HTTP communication, such as Remote UI, WSD printing, and AirPrint.
* If HTTP communication is enabled even though you are not using functions that require HTTP communication, there is a risk of unauthorized access by a third party.
This section describes how to configure the settings using the control panel.
You can also configure the settings by using Remote UI from a computer. Managing the Machine from a Computer (Remote UI)
Administrator or NetworkAdmin privileges are required. The machine must be restarted to apply the settings.
You can also configure the settings by using Remote UI from a computer. Managing the Machine from a Computer (Remote UI)
Administrator or NetworkAdmin privileges are required. The machine must be restarted to apply the settings.
1
Log in as an administrator. Logging In to the Machine
2
In the [Home] screen or other screen, press [
Settings/Registration]. [Home] Screen
Settings/Registration]. [Home] Screen3
Press [Preferences] 
[Network] [TCP/IP Settings] [Use HTTP].
[Network] [TCP/IP Settings] [Use HTTP].The [Use HTTP] screen is displayed.
4
Press [Off] [OK].
[OK].5
Press [ Settings/Registration] [Yes].
Settings/Registration] [Yes].The machine restarts, and the settings are applied.
NOTE
When [Use HTTP] is set to [Off], the following settings are also set to [Off]:
[Remote UI]
[IPP Print Settings]
[Use WSD] and [Use WSD Scan] in [WSD Settings]
[Use WebDAV Server]