Print Controller Design Guide for Information Security
Page 8 of 86
• 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.
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