Generation - Ricoh Aficio 480W Dolphin-C2 Service Manual

28 April 2005

7. Generation

Processing similar to that of the Text mode, but attempts to reduce the thick
characters, restore the thin or broken lines of originals, ignore the background
texture, and erase independent dots that tend to appear in copies of originals which
are themselves 2nd, 3rd, etc. generation copies.
Scanner Image
Correction
Pre-Input
Processing
Magnification
Processing
Filtering
Density Control
Quality
Processing
Image Processing Flow
Shading Correction
↓
Background
Erase
↓
Main Scan
Magnification Processing
↓
MTF Filtering
Independent Dot Erasure
Line Width Correction
↓
γ Correction
↓
4-Value Error Diffusion
Related SP Modes
SP4903-074. Allows adjustment
of background erase.
SP4903-021, 022, 023, 024
Allow selections for adjustment
between soft and sharp images.
SP4903-064
Allows adjustment of independent
dot erase.
SP4903-092, 093, 094
Allows adjustment of line width
correction.
6-21
IMAGE PROCESSING