Intermec CN3, CN3e User Manual page 104

Problems Scanning Bar Codes
Problem
You cannot see a red beam of light from
the scanner when you press the Scan
button and aim the scanner at a bar
code label.
The input device attached to the
computer does not work well or read
bar code labels very quickly.
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.
CN3 Series Mobile Computer User's Manual for Windows Mobile 5.0
Chapter 4 — Troubleshooting and Maintaining the CN3
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 scanning the bar code label "straight on."
Change the scanning angle and try again.
•
The scanner hardware trigger might be disabled in
Intermec Settings. To check the setting go to Start >
Settings > System Tab > Data Collection > Scanner
Settings. Hardware trigger should be checked.
Set the Scanner Model command to the specific attached
input device. Check enabled bar code symbologies and
enable only the symbologies being used.
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 Data Collection >
Symbologies beneath devices listed (scanner, 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.
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