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Chapter 5
5-22
5.3.6
Image Processing
5.3.6.1
Outline
0006-5930
iR2270 / iR2870 / iR3570 / iR4570
The following shows the major specifications and functions of the machine's image processing system:
T-5-8
F-5-25
The following shows the functions of the PCBs used by the machine's image processing system:
T-5-9
The machine uses the reader controller PCB to process images for every single image line; specific functions are as
follows:
1) Analog Image Processing
-CCD drive
-CCD output gain correction, offset correction
-CCD output A/D conversion
2) Digital Image Processing
-shading correction
CCD
number of lines: 1
Number of pixels: Total 7488 (Number of
effective pixels: 7180)
size of pixel: 32 x 46.9 ym
Shading correction
shading correction: executed for each job
shading adjustment: executed at power-on
Reader controller PCB
CCD drive, analog image processing, A/D
conversion, shading correction
Reader controller PCB
CCD
Analog image
processing block
Digital image
processing block
Shading
processing
Analog
image
processing
A/D
conversion
Contact image
sensor (CIS)
Controller block
Summary of Contents for iR4570 Series
Page 2: ...Download Free Service Manual And Resetter Printer at http printer1 blogspot com ...
Page 6: ...Download Free Service Manual And Resetter Printer at http printer1 blogspot com ...
Page 28: ...Download Free Service Manual And Resetter Printer at http printer1 blogspot com ...
Page 81: ...Chapter 2 Installation ...
Page 82: ......
Page 84: ......
Page 106: ...system setup network Ethernet driver setup auto detect ...
Page 126: ...F 2 94 3 2 3 1 ...
Page 127: ...Chapter 3 Basic Operation ...
Page 128: ......
Page 130: ......
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Page 137: ...Chapter 4 Main Controller ...
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Page 165: ...Chapter 5 Original Exposure System ...
Page 166: ......
Page 213: ...Chapter 6 Laser Exposure ...
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Page 231: ...Chapter 7 Image Formation ...
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Page 249: ...F 7 13 1 2 3 4 ...
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Page 309: ...Chapter 8 Pickup Feeding System ...
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Page 465: ...Chapter 9 Fixing System ...
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Page 501: ...Chapter 10 External and Controls ...
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Page 565: ...Chapter 11 MEAP ...
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Page 573: ...Chapter 12 Maintenance and Inspection ...
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Page 613: ...Chapter 13 Standards and Adjustments ...
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Page 635: ...Chapter 14 Correcting Faulty Images ...
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Page 675: ...T 14 22 Notation Description VR201 for factory use ...
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Page 677: ...Chapter 15 Self Diagnosis ...
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Page 757: ...Chapter 16 Service Mode ...
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Page 760: ...Contents 16 8 1 COPIER 16 102 16 8 1 1 Copier List 16 102 ...
Page 869: ...Chapter 17 Service Tools ...
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Page 871: ...Contents Contents 17 1 Special Tools 17 1 17 2 Oils and Solvents 17 2 ...
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Page 875: ...Oct 8 2004 ...
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