Metrologic Instruments IS4220 ユーザーズマニュアル

 

 

19

T

ROUBLESHOOTING 

G

UIDE

 

 
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 on page 20. 

 

 

No LEDs, beep and 
there is no visible laser 

No Power is being 
supplied to the 
scanner 

Make sure the cable is 
plugged into the host. 
Check the host system’s 
power cable, the outlet and 
power strip.  

No LEDs, beep and 
there is no visible laser 

No power is being 
supplied from the 
USB port. 

The IS4220 requests 
100mA from the USB port. 
If the USB port cannot 
supply this, a notification 
window will appear on the 
screen. 

After scanning a bar 
code, the Red and 
Green LEDs are on, 
but no data is being 
transmitted to the host. 

The scanner is not 
programmed properly 
for communication 
with the host. 

Re-program the scanner 
using the appropriate codes 
for your scanner model. 

After scanning a bar 
code, the scanner 
beeps, but the 
characters appear 
incorrectly in your 
application. 

The scanner is not 
programmed 
correctly.   
 
The incorrect country 
has been selected. 

Re-program the scanner 
using the appropriate codes 
for your scanner model. 

The scanner powers 
up, but does not scan 
and/or beep. 

The scanner is trying 
to scan a particular 
bar code symbology 
that is not enabled 

Verify that the type of bar 
code being read is 
enabled.