Chapter 55-16F-5-23T-5-125.3.3.2 Stabilizing the Scanning Lamp(iR105)0006-9538iR105A transformer PCB has been added to increase the voltage supplied to the inverter power supply from 38 to 40 V so that the intensity of the scanning lampremains stable.5.3.3.3 Controlling the Temperature by a Fluorescent Lamp Heater0006-9428iR105i/iR105+ / iR9070The fluorescent lamp controls the area around the fluorescent lamp to 70 deg C to ensure a stablelight intensity.Related Service ModeCOPIER>ADJUST>LAMP>L-DATA(scanning lamp light intensity data input)Use it to enter the setting recorded on theservice label if the result of CCD-ADJ is NG,thereby determining FL-PWM.Settings: 0 to 255DC controller PCBInverter PCB ScanninglampLightintensitysensorFluorescentheaterTemperaturesensorActivationvoltagePre-heat voltageLight intensity control PCBRelay PCBTransformer PCBVoltage to suit the light intensity.J506BJ852J851J853J1002 J803J10010 V0 V0 V40 VUGND38 VUGND38 VU24 VU24 V38 VGNDGNDGNDFL-PWMFL-ERRFL-CLKFL-THFL-GAINFL-REFHEAT-ONGNDFL-THFL-DTCTFLONPRH-PWMPRH-ONPre-heatoutputcontrolTransformerdrive controlT1001FluorescentlamptransformerCurrentdetectionOutputcontrolH5Pulse signals used to drive the transformer (T1001).12345678910111213123451234566789101112131 2 3 4 5 1 2 3 41 21 2 3 4Error detectionWhen '0', pre-heat voltage is applied.Pulse signals. Changing the pulse width increases/decreases the pre-heat voltage.When '0' ,the scanner heater turns on.Reference intensity level for comparison against FL-DTCT.When '0', the fluorescent lamp turns on.Pulse signals. Changing the pulse width increases/decreases the intensity of light.Difference between FL-REF and FL-DTCT. FL-PWM is corrected based on this data.Fluorescent lampheater temperatureStabilizing the amount oflight of the scanning lamp.Voltage rises from 38V to40V.To light intensity sensorTo temperature sensor/scannerheaterHigher settingLower settingHigher intensityLower intensity
