Troubleshooting - Newland FM420 Quick Start Manual

Fixed mount barcode scanner
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Appendix
C. Troubleshooting
Problem
Engine does not turn on
Engine does not send data
to host computer
Receive garbled with
RS232
Engine does not read
barcodes
Possible Cause
With RS232
communication, adapter
not inserted
With RS232
communication,
communication interface
fails.
With USB or PS/2
communication,
communication interface
fails.
Engine is not connected to
the host.
Engine and the host
baud rate settings are
inconsistent
Did not enable the barcode
Engine can not read the
barcode by it's firmware.
Possible Solution
Insert the adapter
Connect communication
port in right way
Connect communication
port in right way
Check all cable to host
computer.
Check engine and PC-side
communication port baud
rate settings are the same
Please enable it
Please contact the dealer
or us
E-30

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