Image Processing Path - Ricoh B121 Service Manual

Image Processing Path

This diagram shows the various stages of image processing and where they are
performed.
A-D Conversion
Image Correction
・ Auto Shading
• ADS
・ White/Black Line Erase
Correction
・ Scanner Gamma Correction
・ Small Smoothing Filter
Magnification (Main Scan)
Filtering
・ MTF
・ Smoothing
・ Independent Dot Erase
・ Line Width Correction
ID Gamma Correction
Gradation
・ Error Diffusion
・ Dithering
・ Binary Picture
Video Path Control
SM
SBU
8
8
8
8
8
1
1
1
IPU
1
VCU
BICU
1
LD Unit
6-17
IMAGE PROCESSING
Optional
Fax Unit
PCI bus
32 Optional GW
PCI
Controller
Optional Printer
Controller
B121D919.WMF
B121 Series/B259 Series