Metrologic Instruments MS7220 Manuale Utente

25

T

ROUBLESHOOTING 

G

UIDE 

(C

ONTINUED

)

Alpha
characters
show as lower
case

Computer is in Caps
Lock mode

Enable Caps Lock detect
setting 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 unit is
transmitting
each character

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

Computer is in Caps
Lock mode

Enable Caps Lock detect
setting 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

Power-up OK
and scans OK
but does not
communicate
properly to the
host

Com port at the host is
not working or
configured properly

Check to make sure that the
baud rate and parity of the
scanner and the
communication port match
and the program is looking
for “RS-232" data

Power-up OK
and scans OK
but does not
communicate
properly to the
host

Cable not connected
to the proper com port

Check to make sure that the
baud rate and parity of the
scanner and the
communication port match
and the program is looking
for “RS-232" data