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Fax Unit (optional)
The Fax Unit is a device that has a modem function to send and receive fax data when connected to a
telephone line.
The Fax Unit has an interface to the MFP Control Software. The interface provides the MFP Control
Software with information about the status of fax communications and controls the fax communications
according to instructions from the MFP Control Software.
Controller Board
The Controller Board contains Processors, FlashROM, RAM, NVRAM, and Ic Key. It is connected to the
Operation Panel Unit, Engine Unit, Fax Unit, Network Unit, USB Port, SD Card Slot, and Ic Ctlr. The Ic
Ctlr is also connected to the HDD. The following are descriptions of these components:
[Processor]
A semiconductor chip that carries out the basic arithmetic processing of the MFP operation.
[FlashROM]
A memory medium that System/Copy, Network Support, Fax, Web Support, Web Uapl, and Network
Doc Box are installed on. These components identify the TOE of the MFP Control Software.
[RAM]
A volatile memory medium used for image processing.
[NVRAM]
A non-volatile memory medium in which MFP Control Data for configuring the MFP operation is
stored.
[Ic Key]
A security chip that generates random numbers and encryption keys, and detects any tampering with
the MFP Control Software.
Ic Ctlr
A security chip that encrypts information to be stored on the HDD and decrypts information to be read from
the HDD.
HDD
The hard disk drive, where image data and user information for identification and authentication are stored.
Network Unit
Network Unit is an interface board for connection to an Ethernet (100BASE-TX/10BASE-T) network.
USB Port
The USB Port is used to connect a client computer to the TOE, print or fax from the client computer.
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