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TROUBLESHOOTING GUIDE
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.
MS7220 Series Troubleshooting Guide
SYMPTOMS POSSIBLE CAUSE(S) SOLUTION
All Interfaces
No LEDs, beep
or motor spin
No power is being
supplied to the
scanner
Check transformer, outlet
and power strip. Make sure
the cable is plugged into the
scanner
No LEDs, beep No power is being
supplied to the
scanner from host
Some host systems cannot
supply enough current to
power ArgusScan™. Use
the power supply included
with the scanner.
3 beeps on
power up
Non-volatile RAM
failure
Contact a Metrologic
Representative, if the unit
will not hold the
programmed configuration
Continuous
razz tone on
power up
RAM or ROM failure Contact a Metrologic
Representative, if the unit
will not function
Razz tone and
green LED flash
at power up
VLD failure Contact a Metrologic
Representative
Razz tone and
both LEDs flash
at power up
Scanner motor failure Contact a Metrologic
Representative
Multiple scans
upon
presentation of
code
Same symbol timeout
set too short
Adjust same symbol timeout
for a longer time
The unit powers
up, but does
not scan and/or
beep
Beeper disabled. No
tone selected
Enable beeper. Select tone