Gestetner A193 Service Manual page 635

Scanner Switch 02
No FUNCTION
0 Binary picture processing:
to Threshold for Text mode -
7
Normal setting (center
position)
Scanner Switch 03
No FUNCTION
0 Binary picture processing:
to Threshold for Text/Photo
7 mode - Normal setting
(center position)
Scanner Switch 04 - Not used (Do not change the settings).
Scanner Switch 05
No FUNCTION
0 MTF setting (Text mode)
to The value can be between 0 and 11. Refer to the following diagram for how to adjust
3 the setting.
Default setting - 4 (Do not use the setting '5'.)
This setting is independent from the threshold specified by copier SP mode 4-407.
W e a k
0 1
4 Not used
to
7
(A639)
This setting determines the threshold value for binary
picture processing in Text mode, when the scan density
setting is at the center.
The value can be between 00 and FF. For a darker
threshold, input a lower value.
Default setting - 90(H)=144(D)
This setting is independent from the threshold setting
specified by the copier's SP mode 4-418-1.
This setting determines the threshold value for binary
picture processing in Text/Photo mode, when the scan
density setting is at the center.
The value can be between 00 and 0F. For a darker
threshold, input a lower value.
Default setting - 26(H)=38(D)
This setting is independent from the threshold setting
specified by the copier's SP mode 4-418-2.
Main-Scan Direction
2 3 4
Do not use this setting.
Do not change the settings.
4-31
BIT SWITCHES
COMMENTS
COMMENTS
COMMENTS
Strong
5 8 A
6 9 B
7
W e a k
Sub-Scan
Direction
Strong
A194M557.wmf
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