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Chapter 3: Getting To Know The 8525/30 G2
Scanning Techniques
52 Psion Teklogix 8525 G2/8530 G2 Vehicle-Mount Computer User Manual
The 8525 G2/8530 G2 supports a variety of one dimensional (1D) and two
dimensional (2D) laser scanners.
“Scanning Techniques” outlines the mechanics of a successful scan. In addition,
review “Scan LED Indicators” on page 52 to better understand how to interpret
whether or not a bar code has been successfully scanned. Finally, “Troubleshooting”
on page 53 provides some helpful suggestions should the scan fail.
3.7.1 Scanning Techniques
Note: External scanners can be connected to the 8525 G2/8530 G2 tether, serial
or USB device port.
• Hold the scanner at an angle. Do not hold it perpendicular to the bar code.
•Do not hold the scanner directly over the bar code. In this position,
light can reflect back into the scanner’s exit window and prevent a
successful decode.
• Scan the entire bar code. If you are using a 1D or 2D scanner, make certain
that the scan beam crosses every bar and space on the bar code, including
the margins on either end of the symbol.
• If you are using a 2D imaging scanner, make certain the red, oval-shaped
framing mark is centered within the bar code you want to scan.
• When using imaging scanners, do not move the scanner while decoding the
bar code. Movement blurs the image.
• Hold the scanner farther away for larger bar codes.
• Hold the scanner closer for bar codes with bars that are close together.
3.7.2 Scan LED Indicators
The 8525 G2/8530 G2 scanner LED (the upper-right LED) indicates whether or
not your scan is successful. Keep in mind that scan indicators only function when
using a non-decoded, 1D laser scanner connected to the tether port. All other
external scanners have integrated LED indicators that are not controlled by the
8525 G2/8530 G2.
The LED behaves as follows:
• Scan In Progress: scan LED displays solid red colour.
• Successful Scan: scan LED displays solid green colour and turns off when
the scan is ended.
• Unsuccessful scan: scan LED flashes red.