Table of Contents
Advertisement
IMAGE ADJUSTMENT
Adjustment Reference For Gamma Correction
The following tables show the adjustment reference for gamma correction. The
tables show the level of the color scale on the C4 test chart and on the tone control
test sheet printed in the printer SP mode. For example, for K at text mode, grade
12 on the tone control test sheet should be the same as grade 7 on the C4 chart.
Normally, it is not necessary to adjust the gamma data as shown in the table since
ACC adjusts the gamma curve automatically. The fine-tuning of color balance by
gamma data adjustment will be required only when the result from ACC and Color
Calibration does not meet the customer's requirements.
C4 test chart
Photo
K
Test
sheet
Text
C4 test chart
Photo
C
Test
sheet
Text
C4 test chart
Photo
M
Test
sheet
Text
C4 test chart
Photo
Y
Test
sheet
Text
B147B149/B190
1
600 x 600
-
1800 x 600
-
1200 x 1200
-
600 x 600
-
1800 x 600
-
1200 x 1200
-
1
600 x 600
-
1800 x 600
-
1200 x 1200
-
600 x 600
-
1800 x 600
-
1200 x 1200
-
1
600 x 600
-
1800 x 600
-
1200 x 1200
-
600 x 600
-
1800 x 600
-
1200 x 1200
-
1
600 x 600
1
1800 x 600
1
1200 x 1200
1
600 x 600
1
1800 x 600
1
1200 x 1200
1
2
3
4
5
1
3
5
6
1
3
5
6
1
3
4
6
1
3
5
6
1
3
5
6
1
3
5
6
2
3
4
5
1
3
5
6
1
3
5
6
1
3
4
5
1
3
4
5
1
3
5
6
1
3
4
5
2
3
4
5
1
4
6
8
1
4
6
8
1
4
6
7
1
4
6
7
1
4
6
8
1
4
6
7
2
3
4
5
3
4
9
11
3
5
8
10
3
5
8
10
2
5
8
10
3
6
9
10
2
4
7
9
3-12
6
7
8
9
9
10
11
16
8
10
11
16
8
10
12
15
9
10
11
16
9
10
12
16
9
11
12
15
6
7
8
9
9
10
12
13
8
10
11
12
8
10
11
12
8
10
11
12
9
10
11
12
9
10
11
12
6
7
8
9
11
12
14
16
11
12
15
16
10
12
14
16
10
12
14
16
11
13
14
16
10
12
13
16
6
7
8
9
12
14
15
16
11
14
15
16
11
14
15
16
14/
11
14
15
15
12
14
15
16
10
13
15
16
10
-
-
16
-
-
16
10
14
13
13
13
14
13
10
-
-
-
-
-
-
10
-
-
-
16
-
-
SM
Advertisement
Chapters
Table of Contents
Troubleshooting
