Scanning composite bar codes, Scanning composite bar codes -8 – Motorola LS4208 User Manual

Page 32

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Symbol LS4208 Product Reference Guide

Figure 2-10

Moving Scan Pattern Upward and Downward on “Tall” PDF Symbol

Keep the scan pattern parallel to the symbol rows. Upon successful decode, the scanner beeps and the LED turns
green. (For more information about beeper and LED definitions, see

Table 2-1

and

Table 2-2

.)

Scanning Composite Bar Codes

Composite Code is a combination of a 1D symbol (GS1 DataBar, UPC/EAN or UPC/EAN-128) and a 2D symbol
(CC-A, CC-B or CC-C). When scanning a Composite Code:

Keep the scan pattern parallel to the symbol’s rows.

Hold the scanner as still as possible.

Hold the scanner at an angle which does not cause specular reflection.

Hold the scanner close for small symbols, and farther away for large symbols. Practice shows what works.

Aim the scan line at the middle of the 2D portion. The scan pattern rasters and decodes both the 2D and 1D
portion of the Composite Code.

Figure 2-11

Scanning Composite Codes

NOTE

Raster height varies depending on the option selected (see Raster Height on page 4-8).

Aim at the center of the 2D portion

Raster pattern expands to decode

both portions

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