Metrologic Instruments ARGUSSCANTM MS7220 User Manual

Page 27

ROUBLESHOOTING

UIDE

ONTINUED

)

SYMPTOMS

POSSIBLE CAUSE(S)

SOLUTION

The unit powers
up, but does
not scan and/or
beep

Scanning 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 scanner has been
programmed for a
character length lock,
or a minimum length
and bar code being
scanned does not
satisfy the
programmed criteria

Verify that the bar code that
is being scanned falls into
the criteria.
(Typical of Non-UPC/EAN
codes. The scanner
defaults to a minimum of 4
character bar code.)

The unit scans
a bar code, but
locks up after
the first scan
(red LED stays
on)

The scanner is
configured to support
some form of host
handshaking but is not
receiving the signal

If the scanner 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 scanner’s data
format does not match
the host system
requirements

Verify that the scanner’s
data format matches that
required by the host. Make
sure that the scanner is
connected to the proper
host port

Scanner beeps
at some bar
codes and NOT
for others of the
same bar code
symbology

The print quality of the
bar code is suspect

Also check character
length lock.

Check print mode. The type
of printer could be the
problem. Change print
settings. For example
change to econo mode or
high speed

Scanner beeps
at some bar
codes and NOT
for others of the
same bar code
symbology

The aspect ratio of the
bar code is out of
tolerance

Check print mode. The type
of printer could be the
problem. Change print
settings. ie change to econo
mode or high speed