User manual

Chapter 3: Getting to Know the 8515
Scan LED Indicators
28 Psion Teklogix 8515 Vehicle-Mount Computer User Manual
• 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
External scanners have integrated LED indicators that are not controlled by the 8515.
3.7.3 Troubleshooting
If the scanner is not working, investigate the following:
• Is the 8515 on?
• Check that the scanner settings are correctly configured (see “Scanner Settings” on page
87).
• Check the bar code to make sure it is not damaged. Try scanning a different bar code to
verify that the problem is not with the bar code.
• Check that the bar code is within the proper range.
• Does the computer display the warning without scanning? This suggests a hardware
problem in the 8515.
• Is the laser beam scanning across the bar code?
• Once the scan beam has stopped, check the scanner window for dirt or fogging.
3.7.4 Operating One Dimensional (1D) Laser Scanners
• Turn the 8515 on. Wait until the unit has booted up completely.
• Aim at the bar code and press the trigger. A scan beam and a warning indicator appear
until a successful decode is achieved or six seconds have elapsed.
3.7.5 Operating PDF Laser Scanners
This scanner decodes PDF417 two-dimensional bar codes.
• Turn the computer on. Wait until the unit has booted up completely.