Chapter 4
4-8
4.5 Image Processing
4.5.1 Construction of the Image Processing Module
0019-3125
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
The machine's major image processing is executed by the main controller PCB.
The following shows the construction of the modules associated with image processing:
F-4-8
4.5.2 Reader Unit Input Image Processing
0019-3126
iR3225 / iR3225N / iR3235 / iR3235N / iR3245 / iR3245N
The image data read by the CCD unit is processed by the main controller PCB.
F-4-9
SDRAM
Reader unit controller PCB
HDD
Main controller PCB
- image memory
- program (temporary storage)
DC controller PCB
Processes the image data
read by the reader unit.
Reader unit input image processing block
Processes image data for
output to the printer unit.
Printer unit output image
processing block
Reader unit
Film photo mode
Binary processing (screen processing)
Binary processing (error diffusion)
To compression/expansion/editing block
Edge emphasis
Enlargement/reduction
Text mode
Text/photo/film photo mode
-intensify-to-density conversion
-density adjustment (F adjustment)
-gamma correction
Enlargement/reduction
Main controller PCB
Reader unit
Содержание iR3245
Страница 1: ...Jul 3 2008 Service Manual iR3245 3235 3230 3225 Series...
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Страница 25: ...Chapter 1 Introduction...
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Страница 65: ...Chapter 2 Installation...
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Страница 121: ...Chapter 3 Basic Operation...
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Страница 129: ...Chapter 4 Main Controller...
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Страница 197: ...Chapter 7 Image Formation...
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Страница 437: ...Chapter 15 Correcting Faulty Images...
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Страница 739: ...Chapter 19 Service Tools...
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