Chapter 5
5-1
5.1 Basic Construction
5.1.1 Overview
0019-8961
T-5-1
5.1.2 Major Components
0019-8963
F-5-1
Reading on the copyboard
The document loaded on the copyboard is read by the CCD unit, which moves in the horizontal direction.
The CCD unit is driven by the reader motor (M12).
The CCD unit home position is detected by the reader HP sensor (SR717).
Item
Function/Method
Lamp
Cold-cathode tube
Document scan
Book mode: Scanning by movement of the CCD unit
ADF: Scanning in stream reading mode with CCD unit fixed
Reading resolution
600 dpi x 600 dpi
Gradation
256 gradation
Productivity (ADF)
Single-sided: 20.8 ipm (LTR), 19.7 ipm (A4)
Double-sided: Approx. 7 ipm (A4/LTR)
Detection of the carriage position
Reader HP sensor (SR717)
Magnification change (Zoom)
50 to 200 %
(Sub scanning direction only. Image processing by the main controller PCB)
Lens
Fixed focus lens
CCD
Number of lines: 1 line each for RGB
Pixels: 5400 pixels/color
Maximum document reading width: Equivalent to LTR
CCD unit drive control
Drive control by the reader motor (M12)
Document lamp
Lighting control by the inverter circuit
Document size detection
Not provided
[1]
Reader motor (M12)
[2]
CCD unit
[3]
Guide shaft
[4]
Carriage belt
[5]
Reader HP sensor (SR717)
[1]
[3]
[4]
[2]
[5]
Main controller PCB
CCD relay PCB
Reader motor control signal
Reader HP signal
Содержание iR C1020 Series
Страница 1: ...Sep 8 2008 Service Manual iR C1020 Series iR C1021i ...
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Страница 19: ...Chapter 1 Introduction ...
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Страница 73: ...Chapter 3 Basic Operation ...
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Страница 81: ...Chapter 4 Main Controller ...
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Страница 133: ...Chapter 7 Laser Exposure ...
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Страница 345: ...Chapter 18 Service Mode ...
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Страница 389: ...Chapter 19 Upgrading ...
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