Ricoh Aficio MP 2550B Security Target - Page 14

Operation Panel Unit, Engine Unit, Fax Unit, Network Unit, USB Port, SD CARD Slot and Ic Hdd. Ic Hdd

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Page 14 highlights

Page 14 of 83 information about the status of fax communication and controls the fax communication according to the instruction 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 Hdd. Ic Hdd is also connected with HDD. The outlines of processors, FlashROM, RAM, NVRAM, and Ic Key are described below: [Processor] A semiconductor chip that carries out the basic arithmetic processing of the MFP operation. [FlashROM] A memory in which MFP Control Software is installed. [RAM] A volatile memory that is used for an image processing memory. [NVRAM] A non-volatile memory in which MFP Control Data to configure the MFP operation is stored. [Ic Key] A security chip that has the functions of random number generation and encryption key generation, and is used to detect the tampering of MFP Control Software. Ic Hdd Ic Hdd is a security chip that has the functions to encrypt the information to be stored on HDD and to decrypt the information to be read from HDD. HDD HDD is a hard disk drive in which image data and user information for identification and authentication are stored. Network Unit The Network Unit is an interface board for Ethernet (100BASE-TX/10BASE-T) networks. USB Port The USB Port is used to connect a client PC to the TOE, and is used for printing or faxing from that client PC. SD CARD Slot The SD CARD Slot is a slot that is used by the Customer Engineer (hereafter called CE) for the maintenance work using SD CARD. It is located on the side of the TOE, and it is normally covered. When a CE performs maintenance work, he/she removes this cover to insert and remove the SD Card. Copyright (c) 2009,2010 RICOH COMPANY, LTD. All Rights Reserved.

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Page 14 of 83
information about the status of fax communication and controls the fax communication according to the
instruction 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 Hdd. Ic Hdd is
also connected with HDD. The outlines of processors, FlashROM, RAM, NVRAM, and Ic Key are described
below:
[Processor]
A semiconductor chip that carries out the basic arithmetic processing of the MFP operation.
[FlashROM]
A memory in which MFP Control Software is installed.
[RAM]
A volatile memory that is used for an image processing memory.
[NVRAM]
A non-volatile memory in which MFP Control Data to configure the MFP operation is stored.
[Ic Key]
A security chip that has the functions of random number generation and encryption key generation, and
is used to detect the tampering of MFP Control Software.
Ic Hdd
Ic Hdd is a security chip that has the functions to encrypt the information to be stored on HDD and to decrypt
the information to be read from HDD.
HDD
HDD is a hard disk drive in which image data and user information for identification and authentication are
stored.
Network Unit
The Network Unit is an interface board for Ethernet (100BASE-TX/10BASE-T) networks.
USB Port
The USB Port is used to connect a client PC to the TOE, and is used for printing or faxing from that client
PC.
SD CARD Slot
The SD CARD Slot is a slot that is used by the Customer Engineer (hereafter called CE) for the maintenance
work using SD CARD. It is located on the side of the TOE, and it is normally covered. When a CE performs
maintenance work, he/she removes this cover to insert and remove the SD Card.
Copyright (c) 2009,2010 RICOH COMPANY, LTD. All Rights Reserved.