Ricoh K-C3.5L Service Training page 32

Model K-C3.5L
Image Processing Unit
BICU
SBU
IPU
Memory
Controller
LSD FCI
VCU
LD
DRAM
LDD
Slide 32
The image data from the SBU goes to the IPU (Image Processing Unit) on the BICU
board, which carries out the following processes on the image data:
1. Auto shading
2. White/black line correction
3. ADS
4. Scanner gamma correction
5. Magnification (main scan)
6. Filtering (MTF and smoothing)
7. ID gamma correction
8. Binary picture processing
9. Error diffusion
10. Dithering
11. Video path control
12. Test pattern generation
The image data then goes to the GDI controller.
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