Ricoh FAX2900L Service Manual page 181

IMAGE ADJUSTMENT
MTF algorithm
Bit No.
0-4 Not used
MTF algorithm
Bit 6 5 Setting
0 0 High on main
5
0 1 Low on main
6
1 0 High on sub
1 1 Low on sub
7 Not used
Mode
Text AID on
Halftone AID off
AID: Auto Image Density
NOTE: Do not change bits in the shaded part of the table.
Background detection threshold
Bit No.
0-1 Not used
Background detection
threshold
2 0: Low
3-7 Not used
Mode
Text AID on
Halftone AID off
AID: Auto Image Density
NOTE: Do not change bits in the shaded part of the table.
FUNCTION
and sub scan
and sub scan
scan
scan
Address
800CEE(H)
800CF6(H)
FUNCTION
1: High
Address
800CF0(H)
800CF8(H)
COMMENTS
Do not change the settings.
The "high" setting enhances the thickness of
thin lines and dots more than the "low" setting,
however it also makes dust more obvious.
Do not change the settings.
Bit7 Bit6 Bit5 Bit4
1 1 0
1 0 1
COMMENTS
Do not change the settings.
This bit is for text mode only.
0: Suitable for originals that have dark
background.
1: The text thickness is enhanced, however
dust becomes more obvious.
Do not change the settings.
Bit7 Bit6 Bit5 Bit4
1 0 0
1 0 0
6-32
21 May, 1999
Bit3 Bit2 Bit1
1 0 0
1 0 0
Bit3 Bit2 Bit1
0 0 0
0 0 0
Bit0
0 0
0 0
Bit0
0 0
0 0