Metrologic Instruments MS7220 - Manual (Page 28)

25
T ROUBLESHOOTING G UIDE (C ONTINUED )
SYMPTOMS POSSIBLE CAUSE(S) SOLUTION
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
RS-232 Only
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