
 32 
TROUBLESHOOTING GUIDE  
Symptoms  Possible Causes  Solution 
The scanner 
scans the bar 
code but there 
is no data. 
Make sure the scanner is 
configured for the appropriate 
mode.  
The scanner 
scans but the 
data is not 
correct. 
Make sure that the proper PC type 
AT, PS2 or XT is selected. Verify 
correct country code and data 
formatting are selected. Adjust 
inter-character delay symptom. 
The scanner is 
transmitting 
each character 
twice. 
The scanner 
configuration is not 
correctly. 
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 
characters. 
The computer is in 
Caps Lock mode. 
Enable the 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. 
Com port at the host 
is not working or 
configured properly 
Check to make sure that the baud 
rate, parity of the scanner, and the 
communication port match. Check 
to make sure the configuration is 
looking for RS232 data. 
The scanner 
powers-up OK 
and scans OK 
but does not 
communicate 
properly with 
the host.  The cable is not 
connected to the 
proper com port. 
Check to make sure the 
communication cable is securely 
connected to the host and cradle 
and that the cable is connected to 
the correct com port on the host. 
The host is 
receiving data 
but the data 
does not look 
correct. 
The cradle and host 
may not be 
configured for the 
same interface 
parameters. 
Check that the cradle and the host 
are configured for the same 
interface parameters