45530603TH Rev.2 2-19Oki Data CONFIDENTIAL 2. DESCRIPTION OF OPERATION2.5 Initialization processingDescription· The state of initialization is indicated by LED (Power Supply LED, initialization LED 1, 2, 3).· The Power Supply LED is blinking in first step. In the case of the Power Supply is abnormaly, the LED is blinking at high speed.· The initialization is start with turning on the Main Power Supply by turning on the Power Supply Switch in state of turning on of the Main Power Supply Switch.Table of the blinking pattern of the LED in initializationStep Initialization processing LED1 LED2 LED3 Motion of Circuit Display of OPpanel1 Boot start Reading the boot program Display of OKI-logo2 Completion of RAM Chack for boot Expansion of the boot program after RAM check for boot.3 Completion of the recognition forNAND-FlashRecognition processing of NAND-Flash IC7024 Completion of the Main CE1 Recognition processing of CE1(MAIN5 Completion of the Sub CE1 Recognition processing of CE1(SUB)6 Completion of loading the PU-FW The Engine control program is read from NAND-FLAHS IC702) andexpanded to memory.7 Completion of loading the CU-FWCompletion of the board initializationThe CU control program is read from NAND-FLAHS(IC702) andexpanded to memory.Initialinzing8 Completion of the apparatusinitializationReady to PrintlightingExtinctionGDDCFINISHERPUFANCUFANHEATIFHVOLTDUPDCHEATDCBELTRAILIFFPDR8C/34CHEAD1_M0HEAD2_M1HEAD3_M2HEAD4_M3SATAIFXIFSATAPOWDDR3DDR3DIMMF1YᇶᯈMPTCOVFDMRG2CL HOPMTRYREG1CL HOPCLR8C/33dYMCKEMAINDDR3DDR3POWERRCOVER POWFANWTNR COLSNSTHICKPSZTR2SNSTRYSNSMPTIFBatteryTransENV DRIVE0 RFIDCPUMAINLANUSBIC702䠄NAND FLASH䠅POWLEDLED1LED2LED3INITMODEIC6IC31Power Supply LED Initialization LED1, 2, 3When problem occurIt's possible Memory error, in case extinction the LED 1,2,3 or blink the LED2,3 when power switch turn on. Change the Memory DIMM and check retrieve.In case LED1,2,3 stop at Step1 to 6, trouble occur the board. Change the Main board.
