Printer Output Image Processing - Canon imagePRESS C1 P Service Manual

Chapter 4

4.5.4 Printer Output Image Processing

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.
4-14
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.
Reader Unit
RGB 24
Main Controller Circuit
Board (SUB SJ-A,
SUB R-A, SUB PF-A)
RGB phase correction
Input gamma correction
Input direct mapping
- Edge enhancement
- Smoothing
- Background elimination (BE)
- BK signal generation
(monochrome mode)
- Trimming / Masking
- Frame removal
- RGB -> CMYK conversion
YUV
Main Controller Circuit Board (MAIN)
F-4-12
0014-1304