Ricoh TH-C1b Service Manual page 231

B156/b220
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SERVICE PROGRAM MODE
Mode No.
4
(Class 1, 2, and 3)
562
Scanner Application
5
ACS MTF
6
ACS Smoothing
7
ACS Brightness
8
ACS Contrast
628
Gain Adjustment: R
1
R EVEN
2
R ODD
629
Gain Adjustment: G
1
G EVEN
2
G ODD
630
Gain Adjustment: B
1
B EVEN
2
B ODD
661
Last Gain Data: R
1
R EVEN
2
R ODD
662
Last Gain Data: G
1
G EVEN
2
G ODD
663
Last Gain Data: B
1
B EVEN
2
B ODD
688
DF: Density Adjustment
1
DF: Density
Adjustment
800
DF: Density Correction
1
R
2
G
Function / [ Setting ]
Adjusts the MTF level.
[0 ~ 15 / 8 / 1 /step]
0: Least effective MTF, 15: Most effective MTF
Adjusts the smoothing level.
[0 ~ 7 / 4 / 1 /step]
0: Least effective smoothing, 7: Most effective
smoothing
Adjusts the brightness level.
[1 ~ 255 / 128 / 1 /step]
1: Least bright, 255: Brightest
Adjusts the contrast level.
[1 ~ 255 / 128 / 1 /step]
1: Least effective contrast, 255: Most effective contrast
Displays the values of the even and odd gain
adjustment.
Displays the values of the even and odd gain
adjustment.
Displays the values of the even and odd gain
adjustment.
Displays the last gain value for the even red signal in the
CCD image processing circuit.
Displays the last gain value for the odd red signal in the
CCD image processing circuit.
Displays the last gain value for the even green signal in
the CCD image processing circuit.
Displays the last gain value for the odd green signal in
the CCD image processing circuit.
Displays the last gain value for the even blue signal in
the CCD image processing circuit.
Displays the last gain value for the odd blue signal in the
CCD image processing circuit.
Adjusts the brightness for scanning using the ARDF.
[83 ∼ 100 / 100 / 1 %/step]
The density when scanning from the DF exposure glass
tends to be higher than the density from the main
exposure glass. SP4-688 adjusts the density on the DF
exposure glass.
Adjusts the red density when scanning with the ARDF
[–20 ∼ 20 / 0 / 1 %/step]
Adjusts the green density when scanning with the ARDF
[–20 ∼ 20 / 0 / 1 %/step]
5-28
10 February, 2005

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