4Compressio/ Extesion/ Editing Block - Canon iR4570 Series Service Manual

Text mode
Text/photo/film photo mode
Binary processing (error diffusion)
To compression/expansion/editing block
F-4-12
4.5.4 Compressio/ Extesion/ Editing Block
iR2270 / iR2870 / iR3570 / iR4570
Here, image data is processed for compression, extension, and editing.
Reader unit
Main controller PCB
Enlargement/reduction
Edge emphasis
-intensify-to-density conversion
-density adjustment (F adjustment)
-gamma correction
Film photo mode
Binary processing (screen processing)
Chapter 4
0006-6714
4-13