Metrologic Instruments MS9590 Manuel D’Utilisation
29
T
ROUBLESHOOTING
G
UIDE
Symptoms
Possible Causes
Solution
The next four items are only relevant for a Keyboard Wedge interface.
The unit scans
but the data is
not correct.
but the data is
not correct.
The unit’s configuration
is not correct.
is not correct.
Make sure that the proper PC type
AT, PS2 or XT is selected. Verify
the correct country code and data
format is selected. Adjust the inter-
character delay symptom.
AT, PS2 or XT is selected. Verify
the correct country code and data
format is selected. Adjust the inter-
character delay symptom.
The unit is
transmitting each
character twice.
transmitting each
character twice.
The unit’s configuration
is not correct.
is not correct.
Increase the interscan code delay
setting. Adjust whether the F0
break is transmitted.
It may be necessary to try this in
both settings.
setting. Adjust whether the F0
break is transmitted.
It may be necessary to try this in
both settings.
Alpha characters
show as lower
case.
show as lower
case.
The computer is in
Caps Lock mode.
Caps Lock mode.
Enable the Caps Lock detect feature
of the scanner to detect whether the
PC is operating in Caps Lock.
of the scanner to detect whether the
PC is operating in Caps Lock.
Everything works
except for a
couple of
characters.
except for a
couple of
characters.
These characters may
not be supported by
that country’s key look
up table.
not be supported by
that country’s key look
up table.
Try operating the scanner in Alt
mode.
mode.
The following item is only relevant for an RS232 interface.
The unit powers-
up OK and scans
OK but does not
communicate
properly to the
host.
up OK and scans
OK but does not
communicate
properly to the
host.
The com port at the
host is not working or
not configured
properly.
host is not working or
not configured
properly.
Check to make sure that the baud
rate and parity of the scanner and
the communication port match and
that the program is looking for
“RS232” data.
rate and parity of the scanner and
the communication port match and
that the program is looking for
“RS232” data.
The unit powers-
up OK and scans
OK but does not
communicate
properly to the
host.
up OK and scans
OK but does not
communicate
properly to the
host.
The cable is not
connected to the
proper com port.
connected to the
proper com port.
Check to make sure that the unit is
connected to the correct com port
on the host device.
connected to the correct com port
on the host device.
The host is
receiving data
but the data does
not look correct.
receiving data
but the data does
not look correct.
The scanner and host
may not be configured
for the same interface
parameters.
may not be configured
for the same interface
parameters.
Check that the scanner and the host
are configured for the same
interface parameters.
are configured for the same
interface parameters.
Characters are
being dropped.
being dropped.
Inter-character delay
needs to be added to
the transmitted output.
needs to be added to
the transmitted output.
Add some inter-character delay to
the transmitted output by using the
MetroSelect Single-Line
Configuration Guide.
the transmitted output by using the
MetroSelect Single-Line
Configuration Guide.