Motorola LS4208 - Manual (Page 28)

2 - 4 Symbol LS4208 Product Reference Guide
Scan Patterns
The scanner emits several scanning patterns, described as follows. To select a pattern, see Scan Pattern on page
4-6.
Single-Line Only
The laser has no up and down scan line movement (no raster).
Figure 2-2 Single-Line Only Scan Pattern
Multi-Line Smart Raster
The scan line begins as a single line and moves up and down (rasters) when a partial scan of a bar code is
detected, or no bar code is decoded 500 ms after the trigger is pulled. If the scanner detects a PDF417
(LS4208-PR only), GS1 DataBar, or Composite Code, it immediately rasters, opening to a full, optimized raster
pattern as soon as the scanner is properly aligned over the bar code.
Figure 2-3 Multi-Line Smart Raster Scan Pattern
Multi-line Always Raster
Rastering (up and down scan line movement) begins immediately to decode 1D, PDF417 (LS4208-PR only),
GS1 DataBar, and Composite Codes.
Figure 2-4 Multi-Line Always Raster Scan Pattern
Single Scan Line Pattern
Open Raster Pattern
Y-
A
x
is
Y-
A
x
is
Horizontal Displacement (X - Axis)