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SERVICE PROGRAM MODE
Mode No.
Class
Class
1 and 2
3
SBU Auto
Adjustment
4-908
SBU AE Cont
Adjustment
4-909
Scanner Motor
Control
4-910*
DF Shading Interval
Time
4-913*
P - MTF Coefficient
1
(Text /Grayscale
/Main /25%~29%)
P - MTF Coefficient
2
(Text /Grayscale
/Main /30%~76%)
P - MTF Coefficient
3
(Text /Grayscale
/Main /77%~154%)
P - MTF Coefficient
4
(Text /Grayscale
/Main /155%~256%)
P - MTF Coefficient
5
(Text /Grayscale
4-915*
/Main /257%~)
P - MTF Coefficient
6
(Text /Grayscale
/Sub /25%~29%)
P - MTF Coefficient
(Text /Grayscale
/Sub /30%~76%)
7
Function
Performs the auto scanner adjustment.
Using this SP mode after replacing the white
plate or erasing the memory on the BICU
board. See "Replacement and Adjustment –
Copy Image Adjustments - Standard White
Density Adjustment" for details on how to do
this.
Adjusts the background density when ADS
mode is not being used.
Do not change the value.
Selects the scanner motor control method.
If "1" is selected, the current for the scanner
motor will be reduced and jitter copy quality
problems will be alleviated. However, copy
speed will be reduced.
Normally do not change the value.
Adjusts the interval for shading processing
in DF mode.
Light and heat may affect the scanner
response. If copy quality indicates that white
level is drifting during a DF copy job, reduce
this setting. This setting is only effective
when the setting of SP4-950 is "ADAM".
This adjustment is only effective for the
"Service Mode" original type setting.
Selects the MTF filter coefficient in the
grayscale processing mode. See "Detailed
Descriptions - Image Processing" for details.
T/P: Text/Photo
4-28
20 September 1999
Settings
0: No
(Normal
operation)
1: Yes
(Start the
adjustment)
0 ~ 255
1/step
209
0: Normal
1: Special
0 ~ 60
1 s/step
30 s
0 ~ 15
1/step
1
0 ~ 15
1/step
1
0 ~ 15
1/step
3
0 ~ 15
1/step
3
0 ~ 15
1/step
15
0 ~ 15
1/step
2
0 ~ 15
1/step
2
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