Ricoh A193 Service Manual page 183

SERVICE PROGRAM MODE
Mode No.
Class
Class 3
1 and 2
4-910*
1
4-912*
2
4-913*
1
⇒
2
4-998*
3
(A193)
Scanner Selects the scanner motor control method. 0: Normal
Motor Control
If "1" is selected, the current for the
Method
scanner motor will be reduced and jitter
copy image problems will be alleviated.
However, copy speed will be reduced.
SBU Initial Displays the current white level value.
Gain (White
Level Value
Display
Current)
SBU Inital Ref Displays the white level value for the
Cont (White white plate scanned at the factory.
Level Value
Display
Factory)
Shading Adjusts the interval for shading
Interval Time processing in DF mode.
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.
MTF Filter Selects the MTF filter level for Letter
Selection in mode (binary picture mode) at notch 1
Letter Mode - image density level. A stronger filter gives
Binary Picture a sharper line.
Mode for
Notch1
Never select 1.
MTF Filter Selects the MTF filter level for Letter
Selection in mode (binary picture mode) at notch 2
Letter Mode - image density level. A stronger filter gives
Binary Picture a sharper line.
Mode for
Notch 2
Never select 1.
MTF Filter Selects the MTF filter level for Letter
Selection in mode (binary picture mode) at notch 3
Letter Mode - image density level. A stronger filter gives
Binary Picture a sharper line.
Mode for
Notch 3
Never select 1.
Note:The "Notch" mentioned above is the Exposure Setting and
has a range from 1 to 7. A setting of 1=Dark and 7=Light
Function
4-18
Rev. 10/97
Settings
1: Special
0 ~ 60
1 s/step
30 seconds
0 ~ 11
1/step
0
0 ~ 11
1/step
0
0 ~ 11
1/step
9
SM