Chapter 4
4-9
4.5.3 Printer Output Image Processing
0013-9217
/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The main controller processes the image data arriving from the reader unit for output to the printer unit.
F-4-9
- Image data
serial/parallel conversion
- Video count
Main controller PCB
(main + sub (R-A)/
(sub PDRM-PE-A)
Reader unit
RGB
24
Image area
signal
CMYK
- F value adjustment
- Color balance correction
- Framing
- Blanking
- Background removal
- Bk generation
Output direct mapping
RGB->CMY conversion
Output gamma correction
Optimum screen selection
Smoothing
RGB
24
CMYK
32
Image area
signal
Here, the Bk signal is generated
if an ACS session identifies the
original as being black-and-white.
(Otherwise, it is let through.)
For the text area,
UCR processing is executed.
A correction LUT is prepared
as part of PASCAL control.
In color mode, the Bk signal
is generated here.
Y,M,C,Bk
To DC controller PCB
Содержание iR C2880 series
Страница 1: ...Aug 29 2006 Service Manual iR C3380 2880 Series ...
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Страница 23: ...Chapter 1 Introduction ...
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Страница 53: ...Chapter 2 Installation ...
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Страница 127: ...Chapter 3 Basic Operation ...
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Страница 137: ...Chapter 4 Main Controller ...
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Страница 161: ...Chapter 5 Original Exposure System ...
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Страница 188: ...Chapter 5 5 24 F 5 68 4 Remove the original sensor 2 hook 1 F 5 69 ...
Страница 189: ...Chapter 6 Laser Exposure ...
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Страница 207: ...Chapter 7 Image Formation ...
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Страница 431: ...Chapter 15 Correcting Faulty Images ...
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Страница 603: ...Chapter 19 Service Tools ...
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Страница 605: ...Contents Contents 19 1 Service Tools 19 1 19 1 1 Special Tools 19 1 19 1 2 Solvents and Oils 19 2 ...
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