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15.8 Troubleshooting
15.8 Troubleshooting
If a problem occurs while the scanner is being used, check the following items and check the scanner status
on the LCD or in User Utility. If the unit still malfunctions, turn it off, unplug the power cord and call for
service.
Symptom
The LED (Green) does not light
when the unit's power is turned
on.
The computer does not
recognize the scanner. The
scanner is not functioning
correctly.
Scan speed is slow.
The document has been loaded
on the feed tray, but the scanner
does not start scanning.
The documents are not fed one
at a time, but in bunches.
A double feed is detected when
scanning cards.
130
Possible Cause
The power cord is not plugged in.
The scanner is not connected to
the computer correctly.
The software is not installed
correctly.
The scanner is connected via
USB hub.
There is a problem with the
cable.
The network-related settings are
incorrect.
The unit's power was turned off
because no operations were
performed for a certain period of
time.
The scanner is connected over a
USB 1.1 connection.
In case of using this unit with a
LAN connection, the scanning
speed may be slower due to
network traffic.
The document is not loaded
properly.
The sensor cannot detect the
document as the edge of the
document is curled.
The scanning method is set to
manual.
The cards are set in portrait
orientation.
Remedy
Insert the power plug firmly.
Connect the USB cable or LAN
cable correctly.
Uninstall the software from the
computer (page 137), and then
install the software again (page
22).
Do not connect via USB hub.
If you are using a USB cable, be
sure to use the included USB
cable. If you are using a LAN
cable, use a category 5 or
enhanced category 5 cable or
greater.
Check the network-related
settings (page 122).
Turn on the unit's power (page
31).
Connect over USB 2.0, USB 3.0
or USB 3.1.
Consult your network
administrator.
Load the document correctly
(page 47).
Flatten the document (page 42)
and load it again (page 47).
Select automatic scanning using
the manual feed selector (page
76).
Either disable the double feed
detection function or set the
cards in landscape orientation.
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