Ricoh B286 Service Manual page 357

4901 Scan Correction DFU
Shading Correction: AEREF
1
Setting
Shading Correction: Shading
2
Data Output
3 Digital AE: AEREF Setting
4 Digital AE: Low Limit
5 Digital AE: Start Position
4903 Image Quality Adj.
Use this if density is not equal in shaded areas of the copy. The change from high
to low density areas in shaded areas must be smooth. Do these SP adjustments
if you see "false outlines" in shaded areas of the copy.
! To increase the effect, use a higher setting.
To decrease the effect, use a lower setting.
!
! The higher settings can make text look better, but can also decrease the
quality of the image.
MTF Filter Settings
1 Text (25.0-55.0%)
SM
Displays the AEREF value used to supplement
shading processing.
[0 to 63/0/1]
Outputs the shading data used during
supplemental shading processing of scanned
image data.
[0 to 1/0/1]
0: Scanned image after shading processing
(normal)
1: Shading data
Changes the AEREF value used during digital
A/E processing of the scanned image.
[-63 to +63/0/1]
Provides the boundary values to the digital A/E
processing address for the scanned image data.
[0 to 255/41/1]
Defines the start position for digital A/E
processing of the scanned image data.
[0.5 to 10.0/5.0/0.1 mm]
5-87
SP4-xxx Scanner
B286/B289