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( d) Control register A#3
Control register B#3
X 'A6' is set when the power is turned on or when a CLEAR command is issued for initialization.
This register is valid when IPC-2D or IPC-3D option is installed.
MSB
7
6
5
4
LSB
3
2
1
0
A.3 Commands and Response
DTC
Threshold curve
000
Light
001
For OCR
010
(Darken more and more)
011
100
101
Dark
110
Dark
111
Light
For Image scanner
Gradation
00
Ordinary image
10
High contrast image (Ex. Newspaper)
Smoothing mode
00
For OCR
01
For Image scanner
10
Not defined
11
Filtering
0 :
Ball-point pen mode
1 :
Ordinary mode
Appendix A-27
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