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14 August 1997
Mode No.
Class 1
Class 2
7 *
GA4 Setting
(Image Process
mode in Letter/
Photo mode:
Letter areas)
8 *
GA4 Setting
(Image Process
mode in
Letter/Photo
mode: Photo
Areas)
4904 *
10
GA4 Setting
(GA4 Test Data)
12 *
GA4 Setting
(BK Thresh
Level)
13 *
GA4 Setting
(Top point
Level)
14 *
GA4 Setting
(All Black Level)
16 *
GA4 Setting
(Print Top Point
Level)
17 *
GA4 Setting
(Print All Black
Level)
18 *
GA4 Setting
(Dither Pattern)
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Selects the image processing mode
used for Letter areas in Letter/Photo
mode.
0: 1 x 1 dot processing
1: Error diffusion with 1 x 1 dot
processing
2: 2 x 1 dot processing
3: Error diffusion with 2 x 1 dot
processing
A larger value cases the image to
became lighter.
Only works if 4904-4 is at 0.
Selects the image processing mode used for photo
areas in the Letter/Photo mode.
0: 1 x 1 dot processing
1: Error diffusion with 1 x 1 dot processing
2: 2 x 1 dot processing
3: Error diffusion with 2 x 1 dot processing
A smaller value causes the image to become more
sharp in focus.
Only works if 4904-4 is at 0.
Prints the test pattern for the GA4 IC, to test the GA4
chip on the EX-IPU.
0: No Print
1: Gradation
2: Cross
3: Black bands
Changes the threshold level for
binary picture processing mode.
A larger value causes the image to
become lighter.
The value for pixels at an edge in
binary picture processing mode.
Do not change the value.
The value for black areas in binary
picture processing mode.
Do not change the value.
The value for pixels at an edge in
stamp mode.
Do not change the value.
The value for black areas in stamp
mode.
Do not change the value.
Selects the dither pattern used in
binary picture processing mode.
31
Function
SP MODE
Settings
0 ~ 255
1 /step
40
0 ~ 255
1 /step
128
0 ~ 255
1 /step
255
0 ~ 255
1 /step
128
0 ~ 255
1 /step
255
0: 70-line
1: 95-line
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