Psion Teklogix Vehicle-Mount Computer 8525 G2 - Manual (Page 76)

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.