HandHeld Entertainment Document Reader 4800dr - Manual (Page 30)

3 - 8 4800dr Barcode Guide
In the example below, the gray area is the full document reader field of view and the white area is the centering window. Barcode
1 will not be read, while Barcode 2 will be.
The default centering window is a 128x96 pixel area in the center of the document reader’s field of view. The following diagram
illustrates the default top, bottom, left, and right pixel positions, measured from the top and the left side of the document reader’s
field of view, which is 640 by 480 pixels.
If a barcode is not within the predefined window, it will not be decoded or output by the document reader. If centering is turned
on by scanning Centering On, the document reader only reads codes that intersect the centering window you specify using the
Top
, Bottom, Left, or Right barcodes.
Scan Centering On, then scan one of the following barcodes to change the top, bottom, left, or right of the centering window.
Then scan the percent you want to shift the centering window using digits on the inside back cover of this manual. Scan Save.
Default Centering = 40% for Top and Left, 60% for Bottom and Right.
Barcode 1
Barcode 2
0
100%
100%
Default
Center
40% 60%
40%
60%
Left
Right
Bottom
Top
Left of Centering Window
Top of Centering Window
Right of Centering Window
Bottom of Centering Window
* Centering Off
Centering On