User manual

54
TROUBLESHOOTING
The following guide is for reference purposes only. Contact a Metrologic representative at 1-800-ID-METRO or
1-800-436-3876 to preserve the limited warranty terms.
Symptom Possible Cause(s) Solution
All Interfaces
No LEDs, beep or motor
spin.
No power is being
supplied to the scanner.
Check the transformer, outlet and the power strip. Make sure the
power cable is plugged into the scanner.
No LEDs, and no beep.
No power is being
supplied to the scanner.
The host system cannot supply enough current to power the MS2220
series scanner. Use the power supply included with the scanner.
During power up the
unit beeps 3 times.
A Non-volatile RAM
failure.
Contact a Metrologic service representative, if the unit will not hold the
configuration.
During power up the
unit razzes
continuously.
A RAM or ROM failure. Contact a Metrologic service representative, if the unit will not function.
During power up the
unit razzes once and
the blue LED flashes.
A VLD failure. Contact a Metrologic service representative.
During power up the
unit razzes twice and
blue LED flash.
Scanner motor failure. Contact a Metrologic service representative.
There are
multiple scans upon
presentation of code.
The same symbol
timeout is set to short.
Adjust same symbol timeout for a longer time.
The beeper is disabled. Enable the beeper.
No volume is selected. Select a volume.
The unit powers up but
does not beep.
No tone is selected. Select a tone.
The unit is trying to
scan a particular
symbology that is not
enabled.
UPC/EAN and Code 128 are enabled by default. Verify that the type
of bar code being read has been selected.
The unit powers up but
does not scan and/or
beep.
The unit has been
configured for a
character length lock or
a minimum length and
the bar code being
scanned does not
satisfy the configured
criteria.
Verify that the bar code that is being scanned falls into the criteria.
Typical of Non-UPC/EAN codes. The scanner defaults to a minimum
of 4 character bar code.