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7-2
LS 1220 Product Reference Guide
Troubleshooting
Note: If after performing these checks the symbol still does not scan,
contact your distributor or call the Symbol Support Center. See page
xi for the telephone number.
Table 7-1. Troubleshooting
Problem
Possible Cause
Possible Solutions
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.
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.
Make sure the scanner is
programmed to read the type of bar
code to be scanned.
Try scanning other bar code
(
s
)
and
other bar code types.
Incorrect communication
parameters.
Check that the communication
parameters (baud rate, parity, stop
bits, etc.) are set properly.
Bar code symbol is unreadable.
Check the symbol to make sure it is
not defaced. Try scanning similar
symbols of the same code type.
Laser does not
activate, followed by
a beep sequence.
Inappropriately hot environment.
Remove the scanner from the hot
environment, and allow it to cool
down.
Laser activates,
followed by a beep
sequence.
Optional beeper is configured.
Refer to Optional Beeper
Indications on page 8-18 for Beeper
indication descriptions.
Summary of Contents for LS 1220
Page 2: ...LS 1220 Product Reference Guide ...
Page 3: ......
Page 4: ...LS 1220 Product Reference Guide 70 12072 03 Revision A January 2003 ...
Page 23: ...1 8 LS 1220 Product Reference Guide Figure 1 3 LS 1220 Connector ...
Page 33: ...2 10 LS 1220 Product Reference Guide ...
Page 71: ...8 14 LS 1220 Product Reference Guide Figure 8 1 Hardware Handshaking ...
Page 97: ...9 6 LS 1220 Product Reference Guide Code Lengths cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 105: ...9 14 LS 1220 Product Reference Guide Prefix Suffix Values cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 108: ...9 17 Parameter Menus UPC Security Zone cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
Page 120: ...9 29 Parameter Menus Intercharacter Delay cont d 1 2 3 4 5 6 7 8 9 0 CANCEL ...
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