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LS 4208 Quick Reference Guide
4
Troubleshooting
Problem Possible Cause Possible Solutions
Nothing happens when the
trigger is pulled.
No power to the scan-
ner.
Check the system power. Ensure the power
supply is connected if the configuration re-
quires a power supply.
Interface/power cables
are loose.
Check for loose cable connections.
Laser comes on, but sym-
bol does not decode.
Scanner is not pro-
grammed for the correct
bar code type.
Ensure the scanner is programmed to read the
type of bar code scanned.
Refer to the LS 4208 Product Reference Guide,
p/n 72E-69413-xx, for more information.
Bar code symbol is un-
readable.
Check the symbol to ensure it is not defaced.
Try scanning test symbols of the same bar code
type.
Distance between scan-
ner and bar code is in-
correct.
Move the scanner closer to or further from the
bar code.
Symbol is decoded but not
transmitted to the host.
Scanner is not pro-
grammed for the correct
host type.
Scan the appropriate host type bar code.
Scanned data is incorrectly
displayed on the host.
Scanner is not pro-
grammed to work with
the host.
Ensure proper host is selected.
Check the scanner’s host type parameters or
editing options.
• For RS-232, ensure the scanner’s
communication parameters match the
host’s settings.
• For a keyboard wedge configuration,
ensure the system is programmed for the
correct keyboard type, and the CAPS
LOCK key is off.
Ensure editing options (e.g., UPC-E to UPC-A
conversion) are properly programmed.
Refer to the LS 4208 Product Reference Guide,
p/n 72E-69413-xx, for more information.