Symbol PDT 7200 Series Product Reference Manual page 50

bar code is PDF417, the scanning patterns open up to a full, optimized raster pattern as
soon as the scanner is properly aligned over the bar code (
Figure 4-1. 1-D/PDF417 Scan Element Aiming and Scanning Patterns
For best operation in smart raster mode, keep the scan pattern as parallel to the symbol's
rows as possible, keep the scanner as still as possible, and hold the scanner at an angle
which does not give specular reflection (refer to the section
the symbol should be in good condition.
1-D/PDF417 Scanning Mode Options
There are three scanning options: aiming with a dot pattern, scanning with a slab raster
pattern, or always raster.
• Aiming Dot Option
A trigger pull creates the single dot aiming pattern, which lasts for a fixed interval.
This dot easily can be seen in outdoor or high ambient light environments. A slab
raster pattern or an open raster pattern appears next, depending on the
Aiming "Dot" Pattern
Aiming "Slab" Raster Pattern
Open Raster Pattern
Horizontal Displacement (X - Axis)
Operating the Terminal
Figure 4-1).
Angle on page 4-8). Likewise,
4-9