Intermec CN50 User Manual page 92

Chapter 4 — Troubleshooting and Maintaining the CN50
Problems Reading Bar Codes
Problem
You cannot see a red beam of light from
the imager when you press the Scan
button and aim the imager at a bar code
label.
When you release a Scan button or handle
trigger, the Good Read light does not
turn off.
The scanner will not read the bar code
label.
The scanner does not read the bar code
labels quickly, or the scanning beam
seems to be faint or obscured.
You scan a valid bar code label to enter
data for your application. The data
decoded by the scan module does not
match the data encoded in the bar code
label.
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Solution
•
You may be too far away from the bar code label. Try
moving closer to the bar code label and scan it again.
•
You may be reading the bar code label "straight on."
Change the reading angle and try again.
•
Move within two feet of a wall to test the effective
scan of the scanner. For help scanning bar codes, see
"Reading Bar Codes" on page
The Good Read light will remain on if you configure
the computer to use continuous/edge triggering. If you
configure the computer for level triggering and the
Good Read light remains on, there may be a problem.
Press one of the Scan buttons or pull the trigger again
without scanning a bar code label. If the light is still on,
contact your local Intermec representative.
•
Aim the scanner beam to cross entire bar code label
in one pass. Vary the scanning angle.
•
Check the quality of the bar code label, Scan a bar
code label that you know will scan. Compare the
two bar code labels to see if the bar code quality is
too low. You may need to replace the label that you
cannot scan.
•
Make sure the bar code symbology is enabled and
configured correctly. Use Intermec Settings to check
the symbologies. Expand
Symbologies
virtual wedge) to check and enable symbologies,
then scan the bar code label again.
•
Make sure the computer application is expecting
input from a bar code. You may need to type this
information instead.
The scanner window may be dirty. Clean the window
with a solution of ammonia and water. Wipe dry. Do
not allow abrasive material to touch the window.
The computer may have decoded the bar code label in
a symbology other than the label's actual symbology.
Try scanning the bar code label again. Make sure you
scan the entire label.
CN50 Mobile Computer for Windows Mobile 6.1 User's Manual
18.
Data Collection >
beneath devices listed (scanner,