5-1
CHAPTER 5 TROUBLESHOOTING PROCEDURES
If the scanner seems to be operating abnormally, perform the troubleshooting procedures described in
this chapter before requesting a service call.
5.1 The scanner Is turned on but doesn’t operate at all
Cause Remedy
The power cable has come loose. Insert the power plug firmly.
The scanner is connected to a power
outlet that does not provide the rated
power supply or supply voltage.
Use only the rated power supply and supply
voltage.
The power outlet is not supplying a
supply voltage.
Check the power supply.
5.2
The scanner operates improperly after connection to the computer
Cause Remedy
Is the scanner properly grounded? Make sure that the scanner is grounded.
Is the USB cable between the computer
and the scanner working properly?
Determine whether there are any problems with
either of the cable connectors (e.g. a broken or bent
pin) and ensure that the cable is inserted firmly into
the connectors.
Are you using an USB cable not
compliant with the USB 2.0 interface?
Ensure that you use a USB 2.0-compliant USB
cable.
Is an add-on USB card being used? USB 2.0 add-on cards are not supported. Correct
operation is not guaranteed when the scanner is
connected to a USB port that is not the standard
built-in computer port.
Is the Graphtec Network Utility
connected?
(when using the Ethernet connection)
Connect the Graphtec Network Utility.
“Communication error” is displayed for the Graphtec Network Utility status, and connection
cannot be performed.
Cause Remedy
An abnormality has occurred in the
network environment.
Return the network environment to its normal
status.
The scanner was turned on before
power was supplied to the hub. (With
some hub connections, the scanner is
not recognized if power is supplied to
the hub after it has been supplied to the
scanner.)
Turn off the scanner, wait for a short time, and then
turn it on again.
The scanner is in energy-saving mode. The Ethernet interface sleeps while the scanner is
in energy-saving mode. Press one of the buttons
on the scanner’s control panel to bring the scanner
out of the energy-saving mode.
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