Chapter 44-14.1 Construction4.1.1 Specifications, Control Methods, and Functions (iR2020/iR2020J/iR2020i) 0010-4242iR2020 / / iR2020iMajor specifications, control methods, and functions of the original exposure system are summarized below.T-4-14.1.2 Specifications, Control Methods, and Functions (iR2016/iR2016J/iR2016i) 0012-6043iR2016J / iR2016 / iR2016iMajor specifications, control methods, and functions of the original exposure system are summarized below.T-4-24.1.3 Major Components (iR2020/iR2020J/iR2020i) 0010-4243iR2020 / / iR2020iMajor components of the original exposure system are as follows:Item Function/MethodExposure light source LEDOriginal scan In BOOK mode: Original scan is performed by moving the contact image sensor (CIS).When ADF is used: Original stream reading is performed with the contact image sensor(CIS) fixed.Scan resolution 600 dpi (vertical scan) x 600 dpi (horizontal scan) (Color send: 300 dpi horizontal scan)Gradation 256Carriage positiondetectionContact image sensor (CIS) HP sensor (SR401)Magnification range 50% to 200%Vertical scan direction: Image processing is by image processor PCBHorizontal scan direction:BOOK mode: Carriage movement speed change and imageprocessing by image processor PCB *1ADF mode: Original feed speed change and image processing byimage processor PCB *1Lens Rod lens arrayCMOS sensor Number of lines: 1Number of pixels: Total 7488 (incl. 7176 effective pixels)Maximum original scan width: 304 mmCIS drive control Drive control by reader motor (M401)Original size detection [1] BOOK mode:Vertical scan direction: Detection by reflection type sensor (AB/INCH)Horizontal scan direction: Detection by reflection type sensor (AB/INCH)[2] When ADF is usedWidth: Detection by original width sensor PCB in ADFLength: Detection by photo sensor in ADF*1 The control method depends on the magnification. For more details, refer to "Magnification Change".Item Function/MethodExposure light source LEDOriginal scan In BOOK mode: Original scan is performed by moving the contact image sensor (CIS).When ADF is used: Original stream reading is performed with the contact image sensor(CIS) fixed.Scan resolution 600 dpi (vertical scan) x 600 dpi (horizontal scan) (Color send: 300 dpi horizontal scan)Gradation 256Carriage positiondetectionContact image sensor (CIS) HP sensor (SR401)Magnification range 50% to 200%Vertical scan direction: Image processing is by image processor PCBHorizontal scan direction:BOOK mode: Carriage movement speed change and imageprocessing by image processor PCB *1ADF mode: Original feed speed change and image processing byimage processor PCB *1Lens Rod lens arrayCMOS sensor Number of lines: 1Number of pixels: Total 7488 (incl. 7176 effective pixels)Maximum original scan width: 304 mmCIS drive control Drive control by reader motor (M401)Original size detection [1] BOOK mode: not used[2] When ADF is usedWidth: Detection by original width sensor PCB in ADFLength: Detection by photo sensor in ADF*1 The control method depends on the magnification. For more details, refer to "Magnification Change".
