Canon CXDI-50C Service Manual page 91

4-5) As the step (3)-6), create a graph based on the data measured in step 4), and make sure
that the data from the minimum density to the maximum density nearly form a straight
line.
Characteristics of the printer may prevent the data from forming a straight line near
the minimum and maximum densities. Rotate the image on the QA screen, and reprint
or retake measurements.
3.50
3.00
2.50
2.00
1.50
1.00
0.50
0.00
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31
Ideal Density Data for Linear Line
Step 1 2
3.2 D 0 0.10
3.1 D 0 0.10
12 Bit 0 132
8 Bit 0 8
Step 12 13
3.2 D 1.14 1.24
3.1 D 1.10 1.20
12 Bit 1453 1585
8 Bit 90 98
Step 23 24
3.2 D 2.27 2.37
3.1 D 2.20 2.30
12 Bit 2906 3038
8 Bit 180 188
2. Installation Manual
Step
3 4 5
0.21 0.31 0.41
0.20 0.30 0.40
264 396 528
16 24 32
14 15 16
1.34 1.45 1.55
1.30 1.40 1.50
1717 1849 1981
106 114 122
25 26 27
2.48 2.58 2.68
2.40 2.50 2.60
3170 3302 3434
196 205 213
- 74 -
6 7 8
0.52 0.62 0.72
0.50 0.60 0.70
660 792 924
41 49 57
17 18 19
1.65 1.75 1.86
1.60 1.70 1.80
2113 2245 2377
131 139 147
28 29 30
2.79 2.89 2.99
2.70 2.80 2.90
3566 3698 3830
221 229 238
Max setting
density
Film
base
density
9 10 11
0.83 0.93 1.03
0.80 0.90 1.00
1056 1188 1320
65 74 82
20 21 22
1.96 2.06 2.17
1.90 2.00 2.10
2509 2641 2774
155 164 172
31 32
3.10 3.20
3.00 3.10
3962 4095
246 255