Zebra WT6300 - Scanning Considerations; Bar Code Capture with RS4000

Data Capture
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Scanning Considerations
Typically, scanning is a simple matter of aim, scan/decode and a few quick trial efforts master it. However,
two important considerations can be used to optimize any scanning performance:
• Range
Any scanning device decodes well over a particular working range - minimum and maximum distances
from the bar code. This range varies according to bar code density and scanning device optics.
Scanning within range brings quick and constant decodes; scanning too close or too far away prevents
decodes. Move the scanner closer and further away to find the right working range for the bar codes
being scanned. However, the situation is complicated by the availability of various integrated scanning
modules. The best way to specify the appropriate working range per bar code density is through a chart
called a decode zone for each scan module. A decode zone simply plots working range as a function of
minimum element widths of bar code symbols.
• Angle
Scanning angle is important for promoting quick decodes. When laser beams reflect directly back into
the scanner from the bar code, this specular reflection can “blind” the scanner.
To avoid this, scan the bar code so that the beam does not bounce directly back. But don’t scan at too
sharp an angle; the scanner needs to collect scattered reflections from the scan to make a successful
decode. Practice quickly shows what tolerances to work within.
NOTE: Contact the Zebra Global Support Center if chronic scanning difficulties develop. Decoding of
properly printed bar codes should be quick and effortless.
Bar Code Capture with RS4000
To read a bar code, a scan-enabled application is required. The device contains the DataWedge
application that allows the user to enable the scanner to decode bar code data and display the bar code
content.
1. Connect the RS4000 to the device. See RS4000 Scanner on page 125 for more information.
2. Ensure that a scan enabled application is loaded or DataWedge is enabled.
3. Press the trigger.
4. Aim the scan beam at the bar code.
Ensure the red scan beam covers the entire bar code. The Decode LED lights red to indicate that
scanning is in process, then lights green and a beep sounds, by default, to indicate the bar code was
decoded successfully.
5. Release the trigger.