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Troubleshooting
If a problem occurs while the unit is being used, check the following items and check the scanner status by User Utility.
If the unit still malfunctions, turn it OFF, unplug the power cord and call for service.
Symptom Possible Cause Remedy
The LED does not light when the
power switch is turned ON.
The power cord is not plugged in. Insert the power plug firmly.
Problem with power supply.
Disconnect the scanner from the
electric outlet and call for service.
The computer does not recognize
the scanner.
The scanner is not connected to the
computer correctly.
Connect the cables correctly.
The scanner is not registered
correctly.
Uninstall the scanner from PC.
Register the scanner hardware
again. (Refer to the Installation
Manual on pages 22 and 23.)
SCSI
connection
The computer cannot recognize the
SCSI card.
Check your computer whether the
SCSI card is installed correctly
using the device manager’s prop-
erty.
The same ID number is used for the
scanner and the other device.
Use the different SCSI ID numbers
for each devices.
The terminator is not set correctly.
If the scanner is the last device in
the SCSI chain, set the DIP switch
of SCSI terminator to Enable.
If the scanner is not the last device
in the SCSI chain, set the DIP
switch of SCSI terminator to Dis-
able.
The scanner was turned on after
the computer was turned on.
Turn the computer OFF. Turn the
scanner ON, and then turn the com-
puter ON again.
USB
connection
The USB interface of the computer
is not installed correctly.
Check the computer whether the
USB interface of your computer is
correctly using the device man-
ager’s property.
The scanner is connected via USB
hub.
Do not connect via USB hub.
The cable without High-Seed logo
is used.
Use the cable with High-Speed
logo.
Scan speed is slow at USB connec-
tion.
The scanner is connected with USB
1.1.
Connect with USB 2.0.
The ADF does not open when the
ADF door release is pushed.
The ADF door is not closed
properly.
Push the ADF door release again
after you close the ADF door until it
is locked.