Metrologic MK9520-37A38, Инструкция по установке и эксплуатации

Страница: 33 / 56

29
T
ROUBLESHOOTING
G
UIDE
Symptoms Possible Causes Solution
The following four items are relevant for a Keyboard Wedge interface only.
The unit scans
but the data is
not correct.
The unit’s configuration
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.
The unit is
transmitting each
character twice.
The unit’s configuration
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.
Alpha characters
show as lower
case.
The computer is in
Caps Lock mode.
Enable the Caps Lock detect feature
of the scanner to detect whether 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.
The following item is relevant for an RS232 interface only.
The unit will
power-up and
scan but does
not communicate
properly to the
host.
The com port at the
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.
The unit will
power-up and
scan but does not
communicate
properly to the
host.
The cable is not
connected to the
proper com port. Check to make sure that the unit is
connected to the correct com port
on the host device.