Image Processing Path - Ricoh AFICIO A267 Service Manual

20 September 1999

Image Processing Path

Overview
This diagram shows the various stages of the image process and where they are
done.
Optional
Printer
Controller
Binary Picture Processing
Grayscale Processing
Image Correction
• ADS
Image Correction
• ADS
• Auto Shading
• White/Black Line Erase
Correction
• Scanner Gamma Correction
• Small Smoothing Filter
Magnification (Main Scan)
Filtering
• MTF
• Smoothing
• Independent Dot Erase
ID Gamma Correction
Gradation
• Error Diffusion
• Dithering
• Binary Picture Processing
• Grayscale Processing
2
Others
• Independent Dot Erase
• Line Width Correction
• Printer Gamma Correction
2
Video Path Control
1
2
LD Unit
S B U
8
8
8
8
8
1
1
1
8
IPU
1
1
BICU
2-11
IMAGE PROCESSING
Optional
Fax Unit
Optional
Scanner
Controller
A265D509.WMF