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28
TROUBLESHOOTING GUIDE
Symptoms Possible Causes Solution
The unit powers
up, but does not
beep.
The beeper may be
disabled or no tone
has been selected.
Enable beeper and select a tone.
The unit powers
up, but does not
scan and/or
beep.
The unit is trying to
scan a particular
symbology that is not
enabled.
UPC/EAN, Code 39, interleaved 2
of 5, Code 93, Code 128 and
Codabar are enabled by default.
Verify that the type of bar code
being read has been selected.
The unit powers
up, but does not
scan and/or
beep.
The bar code being
scanned does not
satisfy the
programmed criteria
for character length
lock or minimum
length.
Verify that the bar code being
scanned falls into the
programmed criteria.
The scanner defaults to a
minimum of 3 character bar code.
The unit scans
a bar code, but
locks up after
the first scan
and the red LED
stays on.
The unit is configured
to support some form
of host handshaking
but is not receiving
the signal.
If the unit is setup to support
ACK/NAK, RTS/CTS, XON/XOFF
or D/E, verify that the host cable
and host are supporting the
handshaking properly.
The unit scans,
but the data
transmitted to
the host is
incorrect.
The unit’s data format
does not match the
host system’s
requirements.
Verify that the unit’s data format
matches that required by the host.
Make sure that the unit is
connected to the proper host port.
The print quality of
the bar code is
suspect.
The unit beeps
at some bar
codes but NOT
for others of the
same bar code
symbology.
The aspect ratio of
the bar code is out of
tolerance.
Check the print mode. The type of
printer could be the problem.
Change the print settings
(i.e. change to econo mode or
high speed).
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