IMAGE ADJUSTMENT 30 November, 1999
6-30
MTF algorithm
Bit No. FUNCTION COMMENTS
0-4 Not used
5
6
MTF algorithm
Bit 6 5 Setting
0 0 High on main
and sub scan
0 1 Low on main
and sub scan
1 0 High on sub
scan
1 1 Low on sub
scan
The ”high” setting enhances the thickness of
thin lines and dots more than the “low” setting,
however it also makes dust more obvious.
7 Not used Do not change the setting.
Mode Address Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Auto on 800627H 1 101 0 0 0 0Text
80062BH
1101 0 0 0 0
Halftone
Auto off
80062FH 1 0 1 1 0 0 0 0
Auto: Auto image density
NOTE:
DO not change bits in the shaded part of the table.
Background detection threshold
Bit No. FUNCTION COMMENTS
0 Not used
1 Not used
2 Background detection
threshold
0: Low 1: High
This bit is for text mode only.
0: Suitable for originals that have dark
background.
1: The thickness text is enhanced, however
dust is more obvious.
3-7 Not used Do not change the settings.
Mode Address Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
Auto on 800629H 1 0 0 0 000 0Text
80062DH
1 0 0 0 000 0
Halftone
Auto off
800631H 1 0 0 0 0 0 0 0
Auto: Auto image density
NOTE:
DO not change bits in the shaded part of the table.
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