Appendices
29
C TROUBLESHOOTING
This section contains information on solving problems you may encounter when
using the unit. If troubles occur, take a moment to read the information in this
section. Howeve
r, before referring to the diagnostic tips make sure that the
unit is installed as described in Chapter 2 and that all cables are properly
connected.
Problem Diagnostic Tips
The unit is on but a bar code
cannot
be read. The LED is red.
The unit window is dirty. Clean the
unit
window as described in the
Maintenance section.
The presented bar code type is not
enabled. Select the bar code type
with the Configuration Guide.
This unit is disabled by the host.
Refer to Section 1.6.
The bar code type you presented to
the unit is not supported by the unit.
The unit is on, but the motor is not
rotating. A bar code cannot be read.
The LED is intermittently flashing red.
The unit is in sleep mode. Press the
switch on top of the unit to
reactivate the unit (or use the wake
protocol. Refer to section
1.6).
The LED is alternating red/green Mirror motor is defective and must
be r
eplaced (Authorized pers
onnel
only).
The LED is alternating red/green and
beeps are heard.
Possible failure of the scanning
safeguard circuit. Immediately
disconnect
the unit from its
power source. Contact your
supplier.
The unit does not accept more
than two or three bar codes
There is no proper handshaking with
the host
system. Sw
itch the host
system on and check connection
and com
munication settings.