User's Manual

Psion Teklogix 7535 Hand-Held Computer User Manual 49
Chapter 3: Getting To Know Your 7535
Scanning Techniques
3.7.1 Scanning Techniques
Note: The scanning techniques described here apply to internal and external
scanners.
• 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 PDF laser 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.
• 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 7535 scanner LED (the lower-left LED) indicates whether or not your scan is
successful. 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.
A bar code icon appears on the screen during a scan. While the scanner beam is
active, the onscreen message states – SCANNING. If the scan is successful, the bar
code data is displayed on the screen until the scan button (or pistol trigger) is
released.