Intermec CN50 User Manual page 64

Chapter 4 — Troubleshooting and Maintaining the CN50
54
Problems While Scanning Bar Codes
Problem
You press the Scan
button, but you
cannot see a red
beam of light.
When you release
Scan button, the
Good Read LED
does not turn off.
The scanner does 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.
Possible 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.
•
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
If the CN50 is configured to use continuous/edge
triggering, the Good Read LED stays on.
If the CN50 is configured to use level triggering, there
may be a problem. Press the Scan button again
without scanning a bar code label. If the LED is still
on, contact your local Intermec representative.
•
Aim the scanning beam so that it crosses the entire
bar code label in one pass. Try changing the scan
angle.
•
Check the quality of the bar code label, Scan a bar
code label that you know scans well. 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. For
help, see the Data Collection Resource Kit which is
part of IDL. You can download the resource kit
from www.intermec.com/idl.
•
Make sure the application is accepting input by
scanning 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.
CN50 Mobile Computer User's Manual
16.