Disabling HTTP Communication

HTTP is used for communications over the network, such as when you access the machine via the Remote UI. If you are using a USB connection or are otherwise not using HTTP, you can disable HTTP to block malicious third-party intrusions via the unused HTTP port.
Disabling HTTP disables some of the network capabilities, such as the Remote UI, WSD printing, and printing with Google Cloud Print.
Tap <Menu> in the Home Screen.
Tap <Network Settings>.
If a screen for entering a System Manager ID and PIN is displayed, enter the System Manager ID and PIN, tap <Apply>, and press . Setting the System Manager ID
Select <TCP/IP Settings>  <Use HTTP>.
Tap <Off>.
Disables HTTP communication.
Enables HTTP communication.