MAINTENANCE, TROUBLESHOOTING & TECHNICAL SPECIFICATIONS 12 - 5
Linear imager scanner emits five low
long beeps.
Conversion or format error. Check ADF rules for the host.
Linear imager scanner emits a
power-up beep after scanning a
USB device type.
Communication with the bus was
not established.
Communication with the bus must be
established before the linear imager
can operate at the highest power level.
Power-up beep occurs more than
once.
The host PC performed a cold
boot.
The USB bus may put the linear imager
in a state where power to the linear
imager is cycled on and off more than
once. This is normal and usually
happens when the host PC cold boots.
Decoding Bar Codes
Linear imager scanner projects red
illumination, but does not decode the
bar code.
Linear imager scanner is not
programmed for the correct bar
code type.
Program the linear imager to read that
type of bar code. See
Chapter 9,
SYMBOLOGIES
.
Bar code symbol is unreadable. Scan test symbols of the same bar
code type to determine if the bar code
is defaced.
Distance between linear imager
and bar code is incorrect.
Move the linear imager closer to or
further from the bar code. See
Decode
Ranges on page 2-6
.
The scan line is not crossing
every bar and space of the
symbol.
Move the symbol until the scan line is
within the acceptable aiming pattern.
See
Figure 2-1 on page 2-4
.
Linear imager scanner decodes bar
code, but does not transmit the data
to the host.
Linear imager scanner is not
programmed for the correct host
type.
Scan the appropriate host type
programming bar code. See the
chapter corresponding to the host type.
Interface cable is loose. Ensure all cable connections are
secure.
Linear imager scanner emits five
long low beep after a bar code is
decoded.
Conversion or format error was
detected.
The linear imager’s conversion
parameters are not properly
configured.
Ensure the linear imager’s conversion
parameters are properly configured.
Conversion or format error was
detected.
An ADF rule was set up with
characters that can't be sent for
the host selected.
Change the ADF rule, or change to a
host that can support the ADF rule.
Conversion or format error was
detected.
A bar code was scanned with
characters that can't be sent for
that host.
Change the bar code, or change to a
host that can support the bar code.
Table 12-1
Troubleshooting (Continued)
Problem Possible Causes Possible Solutions
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