Digital Camera; Scanning Considerations; Bar Code Capture With Imager - Motorola MC 40 User Manual

3 - 2 MC40 User Guide
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Pick List Mode: This mode allows the user to selectively decode a bar code when more than one bar
code is in the MC40's field of view. To accomplish this, move the aiming crosshair over the required bar
code to decode only this bar code. This feature is ideal for pick lists containing multiple bar codes and
manufacturing or transport labels containing more than one bar code type (either 1D or 2D).

Digital Camera

MC40 with an integrated camera based bar code scanning solution with the following features:
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Omnidirectional reading of a variety of bar code symbologies, including the most popular linear, postal,
QR, PDF417, and 2D matrix code types.
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Cross-hair reticle for easy point-and-shoot operation.
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Picklist mode to decode a particular bar code from many in the field of view.
The solution uses the advanced camera technology to take a digital picture of a bar code, and executes
state-of-the-art software decoding algorithms to extract the data from the image.

Scanning Considerations

Typically, scanning is a simple matter of aim, scan, and decode and a few quick trial efforts master it. However,
consider the following to optimize scanning performance:
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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.
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Angle
Scan 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.
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Hold the MC40 farther away for larger symbols.
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Move the MC40 closer for symbols with bars that are close together.
NOTE Scanning procedures depend on the application and MC40 configuration. An application may use
different scanning procedures from the one listed above.

Bar Code Capture with Imager

To capture bar code data:
Ensure that an application is open on the MC40 and a text field is in focus (text cursor in text field).
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Point the top of the MC40 at a bar code.
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