80 Voyager 1470/1472 User Guide
If a bar code is not touched by a predefined window, it will not be decoded or output
by the scanner. If Presentation Centering is turned on by scanning Presentation
Centering On, the scanner only reads codes that pass through the centering win-
dow you specify using the Top of Presentation Centering Window, Bottom of
Presentation Centering Window, Left, and Right of Presentation Centering Win-
dow bar codes.
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.
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.
Scan Presentation Centering On, then scan one of the following bar codes to
change the top, bottom, left, or right of the centering window. Then scan the per-
cent you want to shift the centering window using digits on the Programming
Chart. Scan Save. Default Presentation Centering = 40% for Top and Left, 60% for
Bottom and Right.
0
Bar Code 1
Bar Code 2
10 20 30 40 50 60 70 80 90 100%
100
90
80
70
60
50
40
30
20
10
0%
Presentation Centering On
* Presentation Centering Off
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