Gestetner B003 Service Manual page 226

SERVICE PROGRAM MODE
SP4 Mode Number
4903* 18* Black Streaking Correction
20* Filter Level: Text 25%~64%
MTF Filter Level: Text
21*
25%~64%
22* Filter Strength: Text
25%~64%
23* MTF Filter Strength: Text
25%~64%
Filter Level: Text
24*
65%~154%
25* MTF Filter Level:
65%~154%
26* Filter Strength: 65%~154%
27* MTF Filter Strength: Text
65%~154%
28* Filter Level: Text
155%~256%
29* MTF Filter Level: Text
155%~256%
30* Filter Strength Text:
155%~256%
31* MTF Filter Strength: Text
155%~256%
32* Filter Level: Text
257%~400%
33* MTF Filter Level:
257%~400%
B003/B004/B006/B007
Function and [Setting]
Corrects streaks, black lines is copies caused by
a dirty platen or scanning glass.
[0~8 / 0 / 1 step]
0: Off (no black streaking adjustment is
performed)
Select a higher value (1 to 8) to eliminate black
streaking. However, raising the value could
lighten parts of the image or cause part of the
image or text to drop out.
Selects the MTF filter coefficient for the text
mode in the main scan direction.
[0~15 / 9 / 1 step]
Selects the MTF filter coefficient for the text
mode in the sub scan direction.
[0~13 / 13 / 1 step]
Selects the MTF filter strength in the main scan
direction for the text mode.
[0~7 / 2 / 1 step]
Selects the MTF filter strength in the sub scan
direction for the text mode.
[0~7 / 2 / 1 step]
Selects the MTF filter coefficient for the main
scan direction in the text mode.
[0~15 / 12 / 1 step]
Selects the MTF filter coefficient for the sub
scan direction in the text mode.
[0~13 / 13 / 1 step]
Selects the MTF filter strength for the main scan
direction in the text mode.
[0~7 / 2 / 1 step]
Selects the MTF filter strength for the sub scan
direction in the text mode.
[0~7 / 2 / 1 step]
Selects the MTF filter coefficient for the main
scan direction in the text mode.
[0~15 / 14 / 1 step]
Selects the MTF filter coefficient for the sub
scan direction in the text mode.
[0~13 / 13 / 1 step]
Selects the MTF filter strength for the main scan
direction in the text mode.
[0~7 / 2 / 1 step]
Selects the MTF filter strength for the sub scan
direction in the text mode.
[0~7 / 2 / 1 step]
Selects the MTF filter coefficient for the sub
scan direction in the text mode.
[0~15 / 15 / 1 step]
Selects the MTF filter coefficient for the sub
scan direction in the text mode.
[0~13 / 13 / 1 step]
5-20 SM