Ricoh Aficio MP 2851 Security Target - Page 12

Page 12 of 81 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 Hdd. The Ic Hdd 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 in which the MFP Control Software is installed. [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 Hdd 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. SD Card S lot The SD Card Slot is a slot that is used by a customer engineers (hereafter called a "CE") for maintenance work using an SD card. It is located on the side of the TOE, and is normally covered. When a CE performs Copyright (c) 2010 RICOH COMPANY, LTD. All Rights Reserved.