SERVICE PROGRAM MODE TABLES
20 June 2005
5-24
Scanner: Photo
4553*
These SP codes set the MTF (Modular Transfer Function
*
1
) for Photo mode.
Note
:
•
As a general rule, adjust the level (coefficient) before adjusting the strength.
•
Raising the brightness or contrast level may increase the occurrence of moiré
4553 1 MTF Filter Level: Main Scan
4553 2 MTF Filter Level: Sub Scan
Set the MTF coefficient for main/sub scan
directions.
[0~15/
8
/1]
0: Weakest
Å
8: Default
Æ
15: Strongest
4553 3 MTF Filter Strength: Main Scan
4553 4 MTF Filter Strength: Sub Scan
Set the MTF strength for main/sub scan
directions.
[0~7/
4
/1]
0: Weakest
Å
4: Default
Æ
7: Strongest
4553 5 Smoothing Filter
Selects the level of smoothing.
[0~7/
0
/1]
0: Default (Off)
Æ
7: Strongest
4553 6 Brightness (Not Used)
Sets the overall brightness of the image.
[1~255/
128
/1]
1: Weakest
Å
128: Default
Æ
255: Strongest
4553 7 Contrast (Not Used)
Sets the overall contrast of the image.
[1~255/
128
/1]
1: Weakest
Å
128: Default
Æ
255: Strongest
4553 8 Isolated Dot Removal
Sets the level of independent dot erasure to
improve the appearance of background.
[0~7/
0
/1]
0: Default (Off)
Æ
7: Strongest
*1
When the CCD converts the original image to electrical signals, the contrast is reduced due to
the influence that adjacent white and black pixels have on one another as a result of lens
properties. Typically, you will see very narrow width and spacing between black and white areas.
MTF corrects this problem and emphasizes image detail.
