Symbol LS4278 Reference Manual page 48

3 - 4 Symbol LS4278 Product Reference Guide
Troubleshooting (Continued)
Table 3-1
Problem
Scanner emits four long low beeps.
Scanner emits five low long beeps.
Decoding Bar Codes
Scanner emits the laser, but does
not decode the bar code.
Scanner decodes bar code, but does
not transmit the data to the host.
Possible Causes
A transmission error was
detected in a scanned symbol.
The data is ignored.
The scanner is either:
- Out of range
- Not paired to the cradle
- Not connected to a remote
Bluetooth device.
Acknowledgment that transmitted
data was not received by the
cradle.
Conversion or format error.
Scanner is not programmed for
the correct bar code type.
Bar code symbol is unreadable.
Distance between scanner and
bar code is incorrect.
The scan line is not crossing
every bar and space of the
symbol.
Scanner is not programmed for
the correct host type.
Interface cable is loose.
Cradle is not programmed for the
correct host interface.
Scanner not paired to
host-connected interface.
Possible Solutions
This occurs if a unit is not properly
configured. Check option setting.
Move the scanner back into range of
the remote device.
Or
Scan the PAIR bar code on the cradle.
Data may have been received by the
host. Check the host system for receipt
of transmitted data. If data was not
received by the host, re-scan the bar
code.
Check ADF rules for the host.
Program the scanner to read that type
of bar code. See Chapter 13,
Symbologies.
Scan test symbols of the same bar
code type to determine if the bar code
is defaced.
Move the scanner closer to or further
from the bar code. See Decode Zone
on page 2-9.
Move the symbol until the scan line is
within the acceptable aiming pattern.
See Figure 2-2 on page 2-4.
Scan the appropriate host type
programming bar code. See the
chapter corresponding to the host type.
Ensure all cable connections are
secure.
Check scanner host parameters or edit
options.
Pair the scanner to the cradle by
scanning the PAIR bar code on the
cradle.