Reader Unit Input Image Processing - Canon imageRUNNER 2270 Service Manual

4.5.3 Reader Unit Input Image Processing

The image data colleted by the contact image sensor is processed by the main controller
PCB.
Text mode
Text/photo/film photo mode
Binary processing (error diffusion)
F-4-12
Reader unit
Enlargement/reduction
Edge emphasis
-intensify-to-density conversion
-density adjustment (F adjustment)
-gamma correction
Binary processing (screen processing)
To compression/expansion/editing block
Main controller PCB
Film photo mode
Chapter 4
0006-6712
4-15