Psion Teklogix ISO 9001 - Manual (Page 310)

Chapter 7: Peripheral Devices & Accessories
Operating One Dimensional (1D) Laser Scanners
292 WORKABOUT PRO Hand-Held Computer With Windows Mobile 6 Classic & Professional User Manual
held you are using. Check any other parameters that affect the scanning pro-
cedure or the bar code.
• 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 hand-held display the warning without scanning? This suggests a
hardware problem in the hand-held.
• Is the laser beam scanning across the bar code?
• Once the scan beam has stopped, check the scanner window for
dirt or fogging.
7.13.3 Operating One Dimensional (1D) Laser Scanners
• Turn the hand-held on. Wait until the unit has booted up completely.
Important: If an aiming dot is available on the installed scanner, the dot will
be enabled for a configurable time period (including off), after
which normal scanning begins. Refer to “Dot Time (msec)” on
page 130 for details.
Double-clicking the trigger will override the aiming delay and
initiate an immediate scan. Note that the aiming dot is standard
on long-range and high visibility internal scanners.
• Aim at the bar code and press the scan key or the trigger. A scan beam and a
warning indicator appear until a successful decode is achieved or six
seconds have elapsed.
7.13.4 Operating Two Dimensional (2D) Imagers
An imager takes a snap shot of a single bar code or multiple bar codes (at one time).
It can find a bar code regardless of its orientation—that is, even a bar code printed at
a 45 degree angle to the hand-held will be decoded successfully.
Note: When scanning multiple bar codes, ensure that all of the desired bar
codes are within the field of view of the scanner. It is possible that even
when all bar codes are within the field of view, not all of them will be
decoded. Only successfully decoded bar codes are passed to the applica-
tion program. The application program then issues a warning, asking that
you scan the missing bar codes.