
Chapter 5
5-16
F-5-30
1. Analog Image processing
- CCD drive
- CCD output gain correction, offset correction
- CCD output A/D conversion
F-5-31
2. Digital Image Processing
- shading correction
F-5-32
5.3.6.2 CCD Drive
0008-7515
1. CCD
The CCD used in the machine is a 1-line linear image sensor.
- Number of pixels: 7450
- Size of a pixel: 4.7 x 4.7 ym
2. CCD Drive
The signals converted by the light-receiving block are sent out in 2 analog video signal channels (even-numbered pixels, odd-numbered pixels).
CCD/AP PCB
Reader controller
PCB
CCD
A/D
conversion
Shading processing
Analog image
processing
Analog image processing block
Controller
block
Digital image processing block
CCD (1 line each for R, G, and B)
Analog image
signal
Analog image
process
- gain correction
- offset correction
A/D
conversion
CCD drive
control
A12V
A5V
J101
J204
J204
J102
J205
CCD control
signal
Gain correction
data
Digital image
signal
Reader
controller
PCB
Odd-numbered
pixel
Odd-numbered
pixels
Even-numbered
pixels
CCD/AP circuit
10
Even-numbered
pixel
Gain correction
data
EEP-ROM
SRAM
CPU
Shading correction
Digital image
signal
CCD/AP
PCB
Reader controller PCB
10
Digital image
signal
8
Target
value
J101
J102
J204
J205
J203
Содержание iR6570 series
Страница 1: ...Mar 29 2005 Service Manual iR6570 5570 Series...
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Страница 26: ...Contents...
Страница 27: ...Chapter 1 Introduction...
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Страница 55: ...Chapter 2 Installation...
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Страница 58: ...Contents 2 9 3 Mounting the Cassette Heater 2 34...
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Страница 99: ...Chapter 3 Basic Operation...
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Страница 111: ...Chapter 4 Main Controller...
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Страница 135: ...Chapter 5 Original Exposure System...
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Страница 181: ...Chapter 6 Laser Exposure...
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Страница 193: ...Chapter 7 Image Formation...
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Страница 259: ...Chapter 8 Pickup Feeding System...
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Страница 299: ...Chapter 8 8 35 F 8 51 PS36 M19 M14 Reversing flapper Outside delivery roller Point of reversal PS37...
Страница 349: ...Chapter 8 8 85 F 8 290 1 Feeding roller 2 Separation roller 3 Pressure lever 4 Pressure spring 1 2 A B 3 4...
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Страница 351: ...Chapter 9 Fixing System...
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Страница 401: ...Chapter 10 External and Controls...
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Страница 449: ...Chapter 11 MEAP...
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Страница 455: ...Chapter 12 Maintenance and Inspection...
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Страница 469: ...Chapter 13 Standards and Adjustments...
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Страница 505: ...Chapter 14 Correcting Faulty Images...
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Страница 537: ...Chapter 15 Self Diagnosis...
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Страница 565: ...Chapter 16 Service Mode...
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Страница 633: ...Chapter 17 Upgrading...
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Страница 641: ...Chapter 17 17 5 F 17 4 HDD Boot ROM Flash ROM System Software...
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Страница 659: ...Chapter 17 17 23 F 17 32 2 Click Start F 17 33 3 When the downloading session has ended click OK...
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Страница 675: ...Chapter 17 17 39 F 17 59 2 Select the data to download F 17 60 3 Click Start...
Страница 677: ...Chapter 18 Service Tools...
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Страница 679: ...Contents Contents 18 1 Service Tools 18 1 18 1 1 List of Special Tools 18 1 18 1 2 List of Solvents Oils 18 2...
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Страница 683: ...Mar 29 2005...
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