Metrologic Instruments IS1650 Manuel D’Utilisation

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29
T
ROUBLESHOOTING 
G
UIDE
  
 
Symptoms 
Possible Causes 
Solution 
The unit powers 
up, but does not 
beep when bar 
code is scanned. 
The beeper is 
disabled and no tone 
is selected. 
Enable the beeper and select a 
tone. 
 
The unit powers 
up, but does not 
scan and/or 
beep. 
The bar code 
symbology trying to 
be scanned is not 
enabled. 
UPC/EAN, Code 39, interleaved 2 
of 5, Code 93, Code 128, Codabar 
and PDF 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 scanner is trying 
to scan a bar code that 
does not match the 
configured criteria. 
Verify that the bar code being 
scanned falls into the configured 
criteria (i.e. character length lock or 
minimum bar code length settings).
 
The following item is only relevant for RS232 and serial emulation USB Interfaces. 
The unit scans 
a bar code, but 
locks up after 
the first scan 
and the white 
LED stays on. 
The scanner is 
configured to support 
some form of host 
handshaking but is not 
receiving the signal. 
If the scanner is setup to support 
ACK/NAK, RTS/CTS, or 
XON/XOFF, verify that the host 
cable and host are supporting the 
handshaking properly. 
 
The unit scans, 
but the data 
transmitted to 
the host is 
incorrect. 
The scanner’s data 
format does not 
match the host 
system requirements. 
Verify that the scanner’s data 
format matches that required by 
the host.  Make sure that the 
scanner is connected to the 
proper host port.