Kyocera FS 2020D Advanced Operation Manual page 200

Sleep mode
This mode is provided to save power. It is activated when the machine is
not used for a preset period of time. In this mode, power is reduced to
the minimum. The default setting can be changed.
Status page
This lists machine conditions, such as the machine's memory, the total
number of prints and paper source settings. You can print the status
page from the operation panel.
Subnet Mask
This is a 32-bit numerical value that defines which bits of the IP address
specify the network address and which specify the host address.
TCP/IP (Transmission Control Protocol/Internet Protocol)
TCP/IP is a suite of protocols designed to define the way computers and
other devices communicate with each other over a network.
USB (Universal Serial Bus)
An interface standard for low to middle speed serial interfaces. This
printer supports Hi-Speed USB. The maximum transfer rate is 480 Mbps
and the maximum cable length is 5 meters (16 feet).
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