Metrologic Instruments IS4220 Manuel D’Utilisation

 

 

5

V

ISUAL

 

I

NDICATORS

  

 
There is a red and a green LED located on the top of the scanner.  When the 
scanner is on, the flashing or constant illumination of the LEDs indicates the 
status of the current scan and the scanner. 
 

 

No Red LED  

Illumination of the LEDs will not occur if the scanner has 
remained dormant for a specified time and the scanner is 
not receiving power from the host.  To reactivate the unit, 
direct the output window up then down toward the object. 
 
 
 

When the scanner first receives power, the red LED will 
flash, followed by the green LED, and then the unit will 
beep once.  The red LED will stay on after it flashes once. 
 
 
 

When the laser is on, the red LED will be on.  This occurs 
when an object is detected in the scan field.  If the scanner 
cannot detect a bar code within approximately 2.5 
seconds, the unit will go into a standby mode and the red 
LED will shut off indicating that the laser is no longer on. 
 
 
 

When the scanner successfully reads a bar code, the 
green LED will flash and the unit will beep once.  If the 
green LED does not flash or the scanner does not beep, 
then the bar code was not successfully read. 
 
 
 

When the red LED flashes several times while it rests 
upon a stationary surface, then an object is within the scan 
field and is activating the IR sensor repetitively.   
To eliminate this disturbance, direct the scan window 
toward a different location. 
 
 
 

After a successful scan, the scanner transmits the data to 
the host device.  When the host is not ready to receive the 
information, the green LED will remain on until data can 
transmit.