Ricoh Aficio SP C821DNLC Design Guide - Page 11
Software Configuration, 2-1 Shared Service Layers
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Principal Machine Functions Print Controller Design Guide for Information Security 1-2 Software Configuration SDK Copier Scanner FAX Web DocBox Printer GW WS WebSys EAC VAS ECS MCS OCS FCS NCS DCS UCS CCS NRS LCS MIRS DESS SCS S Shared Service Layers SRM libc IMH Engine I/F Scanning Engine Printing Engine MFP only NetBSD FCU MFP only HDD Software Configuration 1-2-1 Shared Service Layers Host I/F ECS (Engine Control Service) MCS (Memory Control Service) IMH (Image Memory Handler) OCS (Operation Panel Control Service) NCS (Network Control Service) FCS (FAX Control Service) Controls engine operations for scanning and printing. Manages the memory in the Image Memory area (incl. the HDD), as well as compression/decompression. Transfers data between the controller and engine. Controls the panel LEDs, monitors panel keys and manages panel objects and display messages. Controls host I/F and protocol control (transport, session). Exchanges data and commands with the FCU (FAX Control Unit), which manages and controls FAX communication and telecommunications lines. Page 11 of 86