Motorola SYMBOL MS120XWA - Manual (Page 15)

Quick Reference Guide 15
Bar Codes (continued)
Slab Pattern
Troubleshooting
Problem
Possible
Cause
Possible Solutions
No red LED
or nothing
happens
when you
attempt to
scan. No power to the
scanner. Check the system power.
Confirm that the correct host
interface cable is used.
Power supply not plugged in.
Check for loose cable
connections.
Scanner
cannot read
the bar
code. Interface/power
cables are loose. Check for loose cable
connections.
Scanner is not
programmed for
the correct bar
code type. Ensure the scanner is
programmed to read the type
of bar code to be scanned.
Try scanning other bar codes
and other bar code types.
Incorrect
communication
parameters. Check that the
communication parameters
(baud rate, parity, stop bits,
etc.) are set properly.