Ricoh Aficio 220 Service Manual page 204

20 September 1999
Mode No.
Class Class
1 and 2 3
P – Binary
Threshold - MIN
4-925*
P - Binary Threshold
- Center
4-926*
P - Smoothing Filter
1 (Photo - Grayscale)
P - Smoothing Filter
4-927*
(Photo – Binary)
2
P - Scanner Gamma
(Text - Grayscale)
1
P - Scanner Gamma
(Text/Photo -
Grayscale)
2
4-928*
P - Scanner Gamma
(Photo - Grayscale)
3
Function
Adjusts the minimum value of the dynamic
binary threshold used at the edges of text
elements.
Only used for binary picture processing.
This adjustment is only effective for the
"Text - Service Mode" original type
setting.
If "Dynamic Binary" is selected with SP4-
922-1, this SP is effective. See "Detailed
Descriptions - Image Processing" for details.
Adjusts the threshold in dynamic binary
mode for pixels not on edges of text/graphic
elements.
Only used for binary picture processing.
This adjustment is only effective for the
"Text - Service Mode" original type
setting.
If "Dynamic Binary" is selected with SP4-
922-1, this mode is enabled. See "Detailed
Descriptions - Image Processing" for details.
This adjustment is only effective for the
"Service Mode" original type setting for
Photo mode. Adjusts the smoothing filter
level. If "0" is selected, smoothing is
disabled. See "Detailed Descriptions -
Image Processing" for details.
Weakest
1 – 2 – 0 – 3 – 4 – 5 – 6 – 7 – 8
This adjustment is only effective for the
"Service Mode" original type setting.
Selects the scanner gamma curve. If "0" is
selected, the scanner gamma curve is either
AE or NAE, depending on the setting for the
other original types in the same mode (e.g.,
AE linear for text-greyscale, as used when
pale, normal, or generation modes are
selected). See "Detailed Descriptions -
Image Processing" for details.
Normally do not change the value.
4-37
SERVICE PROGRAM MODE
Settings
0 ~ 255
1/step
96
0 ~ 255
1/step
96
0 ~ 8
1/step
3
0 ~ 8
1/step
7
Strongest
0: By key
(as
selected)
1: AE
2: NAE
3: Linear
4: SP
0: By key
(as
selected)
1: AE
2: NAE
3: Linear
4: SP
0: By key
(as
selected)
1: AE
2: NAE
3: Linear
4: SP