Opticon NLV-5201 - Trouble Shooting (USB-COM)

Chapter-5
Interface
NLV-5201 User's Manual
64
1st
Trouble Shooting (USB-COM)
5.3.7
Following are the several countermeasures for the trouble caused by USB-COM.
Behavior
Check points / Countermeasures
Not recognized by the PC
(Scanner does not appear
in the device manager)
• Check that USB cable is properly connected.
• Ensure that connected USB port is operating properly.
• In case of connecting to wireless devices like Bluetooth, disconnect
once.
• Confirm the USB port power supply capability. When using laptop or
hub, supply capacity may insufficient.
• Remove from the USB port at once, and after a while, insert again.
• Insert to different port.
Error beep sounds and
does not output by reading
In addition to above;
• Open the COM port with the communication tool.
Cannot connect
(Cannot open COM port)
• Confirm the COM port number by device manager. Refer to 5.3.3 for
how to check.
• Close the tool and re-open it. Operation and countermeasures vary
depending on the tool. Please refer to the tool help or manual.
• Reboot the PC.
Garbled characters
• Confirm that code to be read matches to the character code of the
communication tool.
Line-break is doubled
• Check the line-break setting of the communication tool.