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COPYRIGHT © 2003 CANON ELECTRONICS INC. CANON DR-6080/9080C REV.0 SEPT. 2003
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CHAPTER 2 FUNCTIONS & OPERATION
V. IMAGE
PROCESSING
1. Image Processing Within the Unit
Fig. 2-501 shows a block diagram of the
image processor.
Image reading
unit
300/600 dpi
Image
acquisition unit
10bit 8bit
RGB rearranging
Image
processor 1
SDRAM
SDRAM_I/F
Image resolution
conversion
Brightness adjustment
Contrast adjustment
Gamma correction
Image data
Document orientation
(image rotation)
Image
processor 2
Image
processor 3
Edge enhancement
Simple binary
Error diffusion
Automatic brightness adjustment
JPEG module
JPEG
DMA controller
Personal computer
IC154 within the main CPU PCB (QQ-Chip)
Fig. 2-501
The image processing within the machine is
performed in IC154 (QQ-Chip) within the main
CPU PCB.
With the reading unit, the optical resolution
can be switched between 600 dpi and 300 dpi
from the personal computer. For example, when
the resolution set in the personal computer is 300
dpi or less (300, 240, 200, 150, 100), the optical
resolution of the unit is set to 300
dpi. And, when 400 dpi or 600 dpi is set on the
computer side, 600 dpi is set on the reading unit
side. The image data scanned by the unit are
processed (A/D conversion and shading
correction) within the unit, and then are output as
10-bit digital signals to the main CPU PCB.
Summary of Contents for DR-6080
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Page 188: ...1003N0 0 1 ...
Page 195: ...COPYRIGHT 2003 CANON ELECTRONICS INC CANON DR 6080 9080C FIRST EDITION OCT 2003 vii ...
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Page 284: ...38 Chapter 3 Software Closing CapturePerfect 1 Select Exit from the File menu ...
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Page 352: ...1 Imprinter for DR 6080 9080C Installation Procedure IMS Product Planning Dept ...
Page 355: ...4 3 Remove the left cover 4 screws Remove these screws x4 ...
Page 359: ...8 7 Insert it firmly to the back and fix it with 1 screw M3x6 ...
Page 366: ...15 14 Replace the cable to cable clamp and the document eject cover to the original position ...