Ricoh B089 Service Manual page 792

SCANNER SERVICE MODE
2002 Text (Print) Mode Settings
11* Brightness – Notch 7
12* Contrast – Notch 7
13* Threshold Level – Notch 7
14* Brightness – Notch 6
15* Contrast – Notch 6
16* Threshold Level – Notch 6
17* Brightness – Notch 5
18* Contrast – Notch 5
19* Threshold Level – Notch 5
20* Brightness – Notch 4
21* Contrast – Notch 4
22* Threshold Level – Notch 4
23* Brightness – Notch 3
24* Contrast – Notch 3
25* Threshold Level – Notch 3
26* Brightness – Notch 2
27* Contrast – Notch 2
28* Threshold Level – Notch 2
29* Brightness – Notch 1
30* Contrast – Notch 1
31* Threshold Level – Notch 1
2003 Text (OCR) Mode Settings
1* MTF Filter Coefficient
(Main scan)
2* MTF Filter Coefficient
(Sub scan)
3* MTF Filter Strength
(Main scan)
4* MTF Filter Strength
(Sub scan)
5* Independent Dot Erase
B577
Adjusts the image density for each image density
level for Text mode when using binary picture
processing mode.
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
Adjusts the image density for each image density
level for Text mode when using binary picture
processing mode.
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
[0-255 / 128 / 1 step]
Selects the MTF filter coefficient in the main scan
direction for Text (OCR) mode.
Select a higher number for a stronger filter.
If this is "0", the MTF filter is not applied.
[0-13 / 5 / 1 step]
As above, for sub scan
[0-13 / 5 / 1 step]
Selects the MTF filter strength in the main scan
direction for Text (OCR) mode.
Select a higher number for a stronger filter.
[0-7 / 5 / 1 step]
As above, for sub scan
[0-7 / 5 / 1 step]
Selects the independent dot erase level.
With a larger SP setting, more dots are detected as
independent dots and erased.
If this is "0", independent dot erase is disabled.
[0-7 / 0 / 1 step]
3-4 SM