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Symptoms Possible Causes Solution
The unit beeps
at some bar
codes and NOT
for others of the
same bar code
symbology.
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 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 next four items are only relevant for a Keyboard Wedge interface.
The unit scans
but the data is
not correct.
The configuration is not
set correctly.
Make sure that the proper PC
type AT or PS2 is selected.
Verify correct country code
and data formatting are
selected. Adjust inter-character
delay symptom.
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.
Everything
works except for
a couple of
characters.
These characters may
not be supported by that
country’s key look up
table.
Try operating the scanner in
Alt mode.