Hand Held Products 4600g - Manual (Page 60)

3 - 12 4600g, 4600r, 4800i User’s Guide
In the example below, the gray area is the full imager field of view and the white
area is the centering window. Bar Code 1 will not be read, while Bar Code 2 will
be.
The default centering window is a 128x96 pixel area in the center of the imager’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 imager’s field
of view, which is 640 by 480 pixels.
If a bar code is not within the predefined window, it will not be decoded or output
by the imager. If centering is turned on by scanning
Centering On , the imager
only reads codes that intersect the centering window you specify using the Top ,
Bottom , Left , or Right bar codes.
Bar Code 1
Bar Code 2
0
100%
100%
Default
Center
40% 60%
40%
60%
Left
Right
Bottom
Top