Restricting USB Functions
USB is a convenient way of connecting peripheral devices and storing or relocating data, but USB can also be a source of information leakage if it is not properly managed. Be especially careful when handling USB memory devices. This section describes how to restrict connection via the USB port of the machine and how to prohibit use of USB memory devices.
Restricting the USB Connection with a Computer
You can disable the USB port for computer connection located on the back side of the machine. If this port is disabled, the machine cannot communicate with a computer via USB but you can connect a USB memory device to the USB port on the lateral side of the operation panel.
1
Tap <Menu> in the Home screen.
2
Tap <System Management Settings>.
If the logon screen appears, enter the correct ID and PIN using the numeric keys, and then press 
. Logging on to the Machine
. Logging on to the Machine3
Tap <Use as USB Device>.
4
Tap <Off>.
<Off>Disables the USB port of the machine.
<On>Enables the USB port of the machine.
5
Restart the machine.
Turn OFF the machine, wait for at least 10 seconds, and turn it back ON.
Restricting the USB Print Function
You can disable printing data from a USB memory device. The data in the USB memory device cannot be printed.
1
Tap <Menu> in the Home screen.
2
Tap <System Management Settings>.
If the logon screen appears, enter the correct ID and PIN using the numeric keys, and then press . Logging on to the Machine
. Logging on to the Machine3
Tap <Memory Media Print On/Off>.
4
Tap <Off>.
<Off>Disables the function to read the data from a USB memory device. The data in the USB memory device cannot be printed.
<On>Enables the function to print the data stored in a USB memory device.
5
Restart the machine.
Turn OFF the machine, wait for at least 10 seconds, and turn it back ON.