Reader Input Image Processing - Canon iR C6800 Series Service Manual

4.5.3 Reader Input Image Processing

The image data (RGB data) from the CCD unit is processed by the main controller PCB (sub).
Processing that takes
the place of conventional
input masking;
executes color correction
for the CCD RGB filters.
Hereafter, Bk signals only
in the case
of mono color mode.
Reader unit
24
RGB
Main controller PCB (sub)
IC15
RGB phase correction
Input y correction
Input direct mapping
- edge emphasis
- smoothing
- anti-see-through (BE)
- Bk generation
(mono color)
- framing
- blanking
- frame erasing
RGB
IC12
Main controller PCB (main)
F-4-14
IC17
black character
identification
ACS
identification
Image area image
signal generation
4
Chapter 4
0003-2928
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