Chapter 55-4T-5-45.2 Basic Sequence5.2.1 Basic Sequence of Operation at Power-On 0012-9670imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+F-5-6F-5-75.2.2 Basic Sequence of Operation in Response to a Press on the Start Key 0012-9671imagePRESS C1 / Color Image Reader-H1 / imagePRESS C1+ (Printer) / imagePRESS C1+1. Basic Sequence of Operation in Response to a Press on the Start Key (book mode; 1 original)J203 used for communications with the printer unit (connection with the scanner motor).used for communications with the ADF (image signal input).J204 used for connection with the CCD unit.J205 used for communication with the CCD unit.J206 used for connection with the inverter PCB.J207 used for connection with the original size sensor (AB-configuration).J208 used for connection with the original size sensor (inch-configuration).J209 not usedJ210 not used.IC DescriptionIC1 CPU (stores boot program)IC2 ASCI (built-in RAM)IC3 flash RAM (stores firmware)IC4 EEPROM (backs up service mode settings)Jack No DescriptionReader motorOriginal scanning lampHP sensorSTBYSTBY SREADYReverseForwardON ONScanner unit position HP (shading position)Gain correctionOffset correctionForwardReverse shift shadingfixed shadingwhite plate dust detection controlshading correctionHP (shading position){1. HP positioning2. CCD-LIVE controlgain correction3. move to shift shadingstart positionStartpositionShadingposition Image leading edgeOriginal size detectionposition*1: shifts only if the copyboard (ADF) is open.4. shift shading5. fixed shading- white plate dust detectionshading correction*2: controls by turning on/off the power of the CCD and the circuitry around it for power saving andfor protection against overheating.*1*1*2
