Motorola Symbol LS4278 Quick Reference Guide

Quick Reference Guide 7
Troubleshooting
Problem Possible Cause Possible Solutions
LED indicates a
battery temperature
fault.
Battery is above or
below normal
operating
temperature.
Do not use the scanner. Move the scanner to a
location within normal operating temperature.
The scanner can remain in the cradle while the
battery warms or cools to normal operating
temperature. Refer to the Product Reference
Guide for more information.
Nothing happens
when the trigger is
pulled.
No power to the
scanner.
Battery may be discharged; charge scanner in
cradle.
Check that battery door is closed
Ensure that end cap to battery chamber is
secured.
Scanner is disabled. Some host interfaces (e.g., Synapse, IBM-468x)
can disable the scanner. If this applies, enable
the scanner via the host interface.
Laser comes on,
but symbol does not
decode.
Scanner is not
programmed for the
correct bar code
type.
Ensure the scanner is programmed to read the
type of bar code scanned.
Refer to the Product Reference Guide for more
information.
Bar code symbol is
unreadable.
Check the symbol to ensure it is not defaced. Try
scanning test symbols of the same bar code type.
Distance between
scanner and bar
code is incorrect.
Move the scanner closer to or further from the bar
code.
Symbol is decoded
but not transmitted
to the host.
Cradle is not
programmed for the
correct host
interface.
Check scanner host parameters or edit options.
Scanner not paired
to host-connected
interface.
Pair the scanner to the cradle (using PAIR bar
code on the cradle).
Interface cable is
loose.
Ensure all cable connections are secure.
Cradle has lost
connection to host.
In this exact order: disconnect power supply;
disconnect host cable; wait three seconds;
reconnect host cable; reconnect power supply;
reestablish pairing.
Scanned data is
incorrectly
displayed on the
host.
Scanner is not
programmed 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 Product Reference Guide for more
information.

Motorola Symbol LS4278 Specifications

General

Brand	Motorola
Model	Symbol LS4278
Category	Barcode Reader
Language	English