User Manual

54
Troubleshooting
This chapter describes the problems that might occur in the CR-150/
CR-120 and how to remedy them.
The following causes and remedies describe why your computer may
not recognize the scanner.
Common errors that occur while connecting to the network as well as
their causes and remedies are explained here.
When the Scanner Is Not Recognized
Cause The Scanning Utility is not installed.
Remedy Install the Scanning Utility before connecting the scanner to
the computer. (See “Setting Up the Scanner,” on p. 5.)
Cause The scanner is not correctly connected to the computer.
Remedy Connect the scanner to the computer correctly. (See
“Connecting the Scanner to a Computer,” on p. 8.)
Cause The CR-150/CR-120 is not recognized by your computer.
Remedy • Restart your computer.
• If your computer has multiple USB ports, try using a
different USB port.
• Disconnect the USB cable, make sure the computer and
scanner are turned ON, and then reconnect the cable.
Cause The USB interface provided as standard with your
computer is not compatible with the scanner.
Remedy Not all USB interfaces provided as standard with personal
computers are guaranteed. Contact your local authorized
Canon dealer for more detailed information. (See “Checking
Your Operating Environment,” on p. 6.)
Cause USB cable is not compatible with the scanner.
Remedy Use the USB cable provided with the scanner. (See
“Checking Your Operating Environment,” on p. 6.)
Cause USB hub is not compatible with the scanner.
Remedy Remove the USB hub to use the scanner. (See “Checking
Your Operating Environment,” on p. 6.)
Cause The CR-150/CR-120 turns OFF automatically.
Remedy Check whether the Auto Power OFF function of the CR-150/
CR-120 is enabled. If it is enabled, disable it.
Network Trouble
Condition Network connection error has occurred
Cause The scanner and computer are not
properly connected through the network.
Remedy Check the computer and the network device settings,
and confirm whether the computer is able to connect to
the network.
For information regarding setting methods for the
computer and the network device, please refer to the
manual of each device.
If the power of the scanner or the network device is
turned off, turn it on. If the power is already on, turn off the
power and turn it back on again.
Condition Error occurs after starting Scanning Utility.
Cause and
Remedy
If messages such as "Scanner is not ready" or "Scanner
cannot be found" are displayed, check the network
cable. If the network cable is not properly plugged in,
make sure it is firmly connected.