Ricoh A217 Service Manual page 31

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SP MODE
Mode No.
Class 1
Class 2
2 *
GA 1 Setting
(L-GAIN2)
3 *
GA 1 Setting
(W-GAIN1)
4 *
GA 1 Setting
(W-GAIN2)
#4901
5 *
GA 1 Setting
*
(B-GAIN 1)
6 *
GA 1 Setting
(B-GAIN2)
7 *
GA 1 Setting
(REF)
4903 *
1 *
GA 3 Setting
(Filter Level)
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The value of the standard AGC gain
for the analog processing IC 2 after
automatic white level adjustment in
the factory.
This SP mode is for factory use
only.
Do not change the value.
The value of the standard AGC gain
for the analog processing IC 1 when
the main switch is turned on.
Do not change the value.
The value of the standard AGC gain
for the analog processing IC 2 when
the main switch is turned on.
Do not change the value.
The value of the black level for the
analog processing IC 1.
Do not change the value.
The value of the black level for the
analog processing IC 2.
Do not change the value.
The value of the standard AGC gain
for scanning the white plate.
Do not change the value.
Selects the strengths of the MTF and
smoothing filters.
bit 7, 6: Letter Mode (MTF)
00: Normal
Weaker
11: Weakest
bit 5, 4: Generation Mode (MTF)
00: Normal
Weaker
11: Weakest
bit 3: Not used
Keep at "0"
bit 2: Letter/Photo Mode
(Smoothing)
0: Sharp
bit 1: Photo Mode (MTF)
0: Weak
bit 0: Photo Mode (Smoothing)
0: Smooth
28
Function
01: Weak
10:
01: Weak
10:
1: Smooth
1: Strong
1: Sharp
14 August 1997
Settings
0 ~ 255
1 /step
65
0 ~ 255
1 /step
65
0 ~ 255
1 /step
65
0 ~ 255
1 /step
40
0 ~ 255
1 /step
40
0 ~ 255
1 /step
170
0 ~ 255
0

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