Canon imagePRESS C1 Service Manual - page 262
Chapter 4
4-14
F-4-12
4.5.4 Printer Output Image Processing
0014-1304
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / imagePRESS C1+
The Main Controller performs image processing on image data received from the Reader Unit so that it may be output to the printer.
Main Controller Circuit Board (MAIN)
YUV
RGB
24
Processing used in place of
conventional input masking.
Color correction is performed
for the CCD's RGB filter.
If the image is monochrome,
only the BK signal results
from this point on.
- Background elimination (BE)
- BK signal generation
(monochrome mode)
- Trimming / Masking
- Frame removal
- RGB -> CMYK conversion
Input direct mapping
- Edge enhancement
- Smoothing
RGB phase correction
Input gamma correction
Main Controller Circuit
Board (SUB SJ-A,
SUB R-A, SUB PF-A)
Reader Unit