5 - 2 TC75 User Guide
Digital Camera
The device with an integrated camera based bar code scanning solution has the following features:
•
Omnidirectional reading of a variety of bar code symbologies, including the most popular linear, postal, QR,
PDF417, and 2D matrix code types.
•
Cross-hair reticle for easy point-and-shoot operation.
•
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.
RS507 Hands-Free Imager
The RS507 Hands-free Imager is a wearable bar code scan solution for both 1D and 2D bar code symbologies.
The scanner supports Bluetooth Human Interface Device (HID) connection to the device.
Figure 5-1 RS507 Hands-Free Imager
Refer to the RS507 Hands-free Imager Product Reference Guide for more information.
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:
•
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.
•
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.
•
Hold the TC75 farther away for larger symbols
•
Move the TC75 closer for symbols with bars that are close together.
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