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31
TROUBLESHOOTING GUIDE
Symptoms Possible Causes Solution
The bar code may
have been printed
incorrectly.
Check if it is a check
digit/character/or border problem.
The scanner is not
configured correctly
for this type of bar
code.
Check if check digits are set
properly.
The unit beeps
at some bar
codes and NOT
for others of the
same bar code
symbology.
The minimum symbol
length setting does
not work with the bar
code.
Check if the correct minimum
symbol length is set.
The unit scans
the bar code but
there is no data.
The configuration is
not set correctly.
Make sure the scanner is
configured for the appropriate
mode.
The unit scans
but the data is
not correct.
The scanner and host
may not be configured
for the same interface
parameters.
Check that the scanner and the
host are configured for the same
interface parameters.
The unit is
transmitting
each character
twice.
The configuration is
not set correctly.
Increase interscan code delay
setting. Adjust whether the F0
break is transmitted. It may be
necessary to try this in both
settings.
Alpha
characters show
as lower case.
The computer is in
Caps Lock mode.
Enable Caps Lock detect setting
of the scanner to detect if the PC
is operating in Caps Lock.
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