Chapter 55-115.3.2.2 Changing the Reproduction Ratio in Sub Scanning Direction 0010-7890iR7105 / iR7095To execute scaling, the moving speed of the mirror 1 mount is changed.Also, digital scaling is concurrently used under the following conditions:- Fixed reading: scaling is from 25 to 99.9%- Stream reading: scaling is from 25 to 88.9%MEMO:Stream reading is basically executed when a copy is made with the ADF. However,fixed reading is executed instead if scaling is from 25 to 49.9% or a 2-sided copy is made at any scaling factor. Fixed reading is executed whenever a copy is madein book mode.5.3.2.3 Changing the Reproduction Ratio in Sub Scanning Direction 0011-2185iR7086To execute scaling, the moving speed of the mirror 1 mount is changed.Also, digital scaling is concurrently used under the following conditions:- Fixed reading: scaling is from 25 to 99.9%- Stream reading: scaling is from 25 to 50%5.3.3 Controlling the Scanning Lamp5.3.3.1 Overview 0010-7891iR7105 / iR7095The following shows the items of control and the components of the control system associated with the activation of the scanning lamp:1) Controlling the ActivationThe machine turns on or off the scanning lamp using the drive signal (XE-ON) generated by the CPU on the reader controller PCB. In response to the signal,the inverter PCB generates high-frequency high voltage in the activation motor circuit using the drive voltage (+24 V) supplied by the reader controller PCB,thus turning on the scanning lamp.2) Detecting an ErrorThe machine identifies an error in the intensity of light as an activation error occurring when the lamp is initially turned on (shading correction).ERROR CODE:E225-0001: at time of shading, the detected intensity of light falls short of a specific level.-0002: in ADF mode, the intensity of light between originals falls short of a specific level.F-5-205.3.3.2 Overview 0010-7892iR7086The following shows the items of control and the components of the control system associated with the activation of the scanning lamp:1) Controlling the ActivationThe machine turns on or off the scanning lamp using the drive signal (XE-ON) generated by the CPU on the reader controller PCB. In response to the signal,the inverter PCB generates high-frequency high voltage in the activation motor circuit using the drive voltage (+24 V) supplied by the reader controller PCB,thus turning on the scanning lamp.2) Detecting an ErrorThe machine identifies an error in the intensity of light as an activation error occurring when the lamp is initially turned on (shading correction).ERROR CODE:E225-0001: at time of shading, the detected intensity of light falls short of a specific level.-0002: in ADF mode, the intensity of light between originals falls short of a specific level.F-5-215.3.3.3 Scanning Lamp 0010-7894iR7105 / iR7095 / iR7086The machine's scanning lamp is a xenon lamp consisting of a tube in which xenon gas is sealed. On the inner side of the glass tube are 2 electrodes running parallelInverter PCBScanning lampReader controlPCBJ601 J203 Activation control circuitLA1CPUGNDGNDGNDGNDXE-ON24V24VXSYNC24V123456789 123456789Inverter PCBscanning lampActivationcontrolcircuitJ601 J206 Reader controller PCBLA1CPUGNDGNDGNDGNDXE-ON24V24VXSYNC24V123456789 123456789
