Symbol PDT 8100 Series Product Reference Manual page 72

PDT 8100 Series Product Reference Guide for Pocket PC 2002
"Tall" PDF Bar Codes
If the PDF417 symbol is "tall," the vertical scan pattern may not be high enough to cover it.
Move the scan pattern slowly down toward the bottom of the symbol, keeping the beam
horizontal to the rows, then slowly back up toward the top.
Figure 2-24. Scanning Tall PDF Bar Code
The scan beam does not have to be perfectly parallel with the top and bottom of the symbol
o
(up to a 4 tilt will work).
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