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90 Troubleshooting
Error Message Appears on the Computer Screen
Writing Error/Output Error/Communication Error
Error Regarding Automatic Duplex Printing Is Displayed
Cause Action
The machine is not ready. Confirm that the Power lamp is lit blue.
If the Power lamp is off, turn the machine on.
While the Power lamp is flashing blue, the machine is initializing. Wait until the
Power lamp stops flashing and remains lit blue.
If the Alarm lamp is lit orange, an error may have occurred in the machine.
For details on how to resolve the error, see “An Error Message Is Displayed on
the LCD” on page 74.
Printer port setting does not match the
computer’s interface connecting the
machine.
Check the printer port settings.
* In the following instruction, “XXX” signifies your machine’s name.
(1)Log into a user account with administrator privilege.
(2)Click Control Panel, then Printer under Hardware and Sound.
In Windows XP, click Control Panel, Printers and Other Hardware, then
Printers and Faxes.
In Windows 2000, click Control Panel then Printers.
(3)Right-click the Canon XXX Printer icon, then select Properties.
(4)Click the Ports tab to confirm the port settings.
Make sure that a port named USBnnn (where “n” is a number) with Canon
XXX Printer appearing in the Printer column is selected for Print to the
following port(s).
If the port setting is not correct, change the port setting according to the
interface you are using, or reinstall the MP Drivers.
Note
When the machine is used over LAN, the port name of the machine is displayed
as “CNBJNP_xxxxxxxxxx”.
* “xxxxxxxxxx” is the character string generated from the MAC address or a
character string specified by the user when setting up the machine.
The machine is not connected properly. Make sure that the USB cable is securely plugged into the USB port of the
machine and is connected to the computer.
z If you are using a relay device such as a USB hub, disconnect it, connect the
machine directly to the computer, and try printing again. If printing starts
normally, there is a problem with the relay device.
Consult the reseller of the relay device for details.
z There could also be a problem with the USB cable. Replace the USB cable
and try printing again.
When you use the machine over LAN, make sure that the machine is connected
to the network with a LAN cable and is set up correctly. Refer to “Checking
Information about the Network” in “Troubles When Using the Machine over
Network” of the User’s Guide on-screen manual.
MP Drivers are not installed properly. The MP Drivers may not be installed properly. Uninstall them following the
procedure described in the PC Printing Guide on-screen manual and reinstall
them following the procedure described in your setup sheet or the Network
Setup Guide.
Cause Action
The correct media size is not selected
in the MP Drivers.
Refer to “Cannot Print Properly with Automatic Duplex Printing” in
“Troubleshooting” of the User’s Guide on-screen manual.