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M3099EX/EH OEM Manual 3-29
INTERFACE
SPECIFICATIONS
Control register A#3
Control register B#3
X’A6' is set when power is turned on or when a CLEAR command is
issued for initialization.
• This register is valid when the IPC II option is installed.
b7 b0
000: Light
001:
010:
011:
100:
101: Dark
110: Dark
111: Light
Threshold curve
DTC
For OCR
Daken more
and more
Filtering
0: Ball-point pen mode
1: Ordinary mode
A#3
B#3
γ curve
Smoothing mode
00: For OCR
01: For image scanner
10:
11:
For image scanner
Not defined
00: Character recognition 1
01: Character recognition 2
10: Dark image
11: Equalized splitting