Metrologic Instruments MS7220 Manuale Utente

24

T

ROUBLESHOOTING 

G

UIDE 

(C

ONTINUED

)

Scanner beeps
at some bar
codes and NOT
for others of the
same bar code
symbology

The bar code may
have been printed
incorrectly

Check if it is a check
digit/character/or border
problem

Scanner beeps
at some bar
codes and NOT
for others of the
same bar code
symbology

The scanner is not
configured correctly
for this type of bar
code

Check if check digits are set
properly

Scanner beeps
at some bar
codes and NOT
for others of the
same bar code
symbology

The minimum symbol
length setting does not
work with the bar code

Check if the correct
minimum symbol length is
set

The unit scans
the bar code
but there is no
data

Configuration is not
correct

Make sure the scanner is
configured for the
appropriate mode.

The unit scans
but the data is
not correct

Configuration is not
correct

Make sure that the proper
PC type AT, PS2 or XT is
selected. Verify correct
country code and data
formatting are selected.
Adjust intercharacter delay
SYMPTOM

The unit is
transmitting
each character

Configuration is not
correct

Increase the interscan code
delay setting. Adjust
whether the F0 break is
transmitted. It may be
necessary to try this in both
settings.