Ricoh Aficio SP C821DNT1 Design Guide - Page 8
Print Controller Design Guide for Information Security
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Print Controller Design Guide for Information Security • Serial communication between the external charge device I/F and external coin/card-operated devices. • External controller I/F board: Acts as the interface between the MFP and external controller. • File Format Converter: Converts the file format of image files. • RC Gate: Intermediary device connected to the MFP/LP via an Ethernet connection for performing remote diagnostic operations including firmware updates and settings changes. • SD card I/F: Used for performing service maintenance and as an interface for firmware storage media. • RAM, HDD: Image data stored in the RAM and HDD memory undergoes compression, decompression and other image processing. • HDD storage: Data stored on the HDD is encrypted. • TPM (Trusted Platform Module): When the MFP/LP main power is turned on, this security module (chip) performs a verification on the validity of the software installed on the hardware platform, which includes checking for any illegal alterations. Page 8 of 86