Ricoh B022, Service Manual, Page: 564 / 878

SCANNER SERVICE MODE
B453/B461 3-4 SM
SP2 Mode Number Function and [Setting]
1* MTF Filter Coefficient
(Text / Binary / Main scan) Selects the MTF filter coefficient in the main
scan direction for Text mode.
Select a higher number for a stronger filter.
If this is “0”, the MTF filter is not applied.
[0-15 / 5 / 1 step]
2* MTF Filter Coefficient
(Text / Binary / Sub scan) As above, for sub scan
[0-13 / 4 / 1 step]
3* MTF Filter Strength
(Text / Binary / Main scan) Selects the MTF filter strength in the main scan
direction for Text mode.
Select a higher number for a stronger filter.
[0-7 / 5 / 1 step]
4* MTF Filter Strength
(Text / Binary / Sub scan) As above, for sub scan
[0-7 / 4 / 1 step]
5* Smoothing Filter
(Text / Binary) Selects the smoothing pattern for Text mode
when using binary picture processing mode.
A larger value could cause moiré to appear in
the image.
[0-7 / 0 / 1 step]
6* Scanner Gamma
(Text / Binary) Selects the scanner gamma type for Text mode
when using binary picture processing mode.
[0-6 / 4 / 1 step]
7* Brightness – Notch 7
(Text / Binary) Adjusts the image density for each image
density level for Text mode when using binary
picture processing mode.
[0-255 / 50 / 1 step]
8* Contrast – Notch 7
(Text / Binary)
[0-255 / 49/ 1 step]
9* Threshold Level – Notch 7
(Text / Binary)
[0-255 / 111/ 1 step]
10* Brightness – Notch 6
(Text / Binary)
[0-255 / 50 / 1 step]
11* Contrast – Notch 6
(Text / Binary)
[0-255 / 49 / 1 step]
12* Threshold Level – Notch 6
(Text / Binary)
[0-255 / 107 / 1 step]
13* Brightness – Notch 5
(Text / Binary)
[0-255 / 50 / 1 step]
14* Contrast – Notch 5
(Text / Binary)
[0-255 / 49 / 1 step]
15* Threshold Level – Notch 5
(Text / Binary)
[0-255 / 103/ 1 step]
16*
Brightness – Notch 4
(Text / Binary)
[0-255 / 50 / 1 step]
17*
Contrast – Notch 4
(Text / Binary)
[0-255 / 49/ 1 step]
18*
Threshold Level – Notch 4
(Text / Binary)
[0-255 / 99/ 1 step]
2002
19* Brightness – Notch 3
(Text / Binary)
[0-255 / 60/ 1 step]