In the example below, the white box is the centering window. The centering window has been set to 20% left, 30% right, 8% top, and 25% bottom. Since Bar Code 1 passes through the centering window, it will be read. Bar Code 2 does not pass through the centering window, so it will not be read.
0%
Bar Code 1
10
20 | Bar Code 2 |
30
40
50
60
70
80
90
100
0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100% |
Note: A bar code needs only to be touched by the centering window in order to be read. It does not need to pass completely through the centering window.
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