Chapter 4
4-10
F-4-11
4.5.3 Reader Unit Input Image Processing
0009-3799
The image data colleted by the contact image sensor is processed by the main controller PCB.
F-4-12
SDRAM
HDD
Reader controller
PCB
- image memory
- program (temporary storage)
Processes the image
data read by the reader unit.
Reader unit input
processing block
Processes image data for
output to the printer unit.
Printer unit output image
processing block
Main controller PCB
DC controller PCB
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
Main controller PCB
Reader unit
Summary of Contents for iR5570 Series
Page 1: ...Mar 29 2005 Service Manual iR6570 5570 Series ...
Page 2: ......
Page 6: ......
Page 26: ...Contents ...
Page 27: ...Chapter 1 Introduction ...
Page 28: ......
Page 30: ......
Page 55: ...Chapter 2 Installation ...
Page 56: ......
Page 58: ...Contents 2 9 3 Mounting the Cassette Heater 2 34 ...
Page 98: ......
Page 99: ...Chapter 3 Basic Operation ...
Page 100: ......
Page 102: ......
Page 110: ......
Page 111: ...Chapter 4 Main Controller ...
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Page 135: ...Chapter 5 Original Exposure System ...
Page 136: ......
Page 181: ...Chapter 6 Laser Exposure ...
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Page 193: ...Chapter 7 Image Formation ...
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Page 259: ...Chapter 8 Pickup Feeding System ...
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Page 351: ...Chapter 9 Fixing System ...
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Page 401: ...Chapter 10 External and Controls ...
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Page 449: ...Chapter 11 MEAP ...
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Page 455: ...Chapter 12 Maintenance and Inspection ...
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Page 469: ...Chapter 13 Standards and Adjustments ...
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Page 505: ...Chapter 14 Correcting Faulty Images ...
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Page 537: ...Chapter 15 Self Diagnosis ...
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Page 565: ...Chapter 16 Service Mode ...
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Page 633: ...Chapter 17 Upgrading ...
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Page 641: ...Chapter 17 17 5 F 17 4 HDD Boot ROM Flash ROM System Software ...
Page 646: ...Chapter 17 17 10 F 17 11 8 Click START F 17 12 ...
Page 675: ...Chapter 17 17 39 F 17 59 2 Select the data to download F 17 60 3 Click Start ...
Page 677: ...Chapter 18 Service Tools ...
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