Metrologic MS2020 Stratos, Руководство по обслуживанию

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©2004 Metrologic Instruments, Inc. All rights reserved MS2020 Stratos Service Manual
TROUBLESHOOTING
Troubleshooting chart Continued…
Symptom Possible Cause(s) Solution
All Interfaces Continued…
The unit is trying to scan a
particular symbology that
is not enabled.
UPC/EAN and Code 128 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 unit has been
programmed for a
character length lock or a
minimum length and the
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
( the white 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.
The print quality of the bar
code is suspect.
Check the character length
lock.
Scanner beeps at
some bar codes and
NOT from others of
the same bar code
symbology.
The aspect ratio of the bar
code is out of tolerance.
The type of printer and/or the printer
settings could be the problem.
Check the print mode or change the
printer settings. For example change to
econo mode or high speed.