Chapter 4 Troubleshooting
Unknown error #****
cannot be established between
computer and printer.
An unknown error was returned.
Confirm that the printer's power is
on (online or sleep state).
Restart the computer and printer.
If the printer is connected to the
computer with LAN connection,
Check the [Extend Time-Out value]
check box from the net work utility.
If the printer is shared, start
Windows Task Manager, and
confirm that "Canon XXXX Status
Monitor Service" (where XXXX is the
model name) is registered in the
If it is not registered, follow the
steps below to register the service.
1. Start CD-ROM.
2. Click [Install the printer driver].
3. Select [Server Client Registration],
and then click [OK].
Confirm the port settings.
Update the printer drivers and
firmware to the latest versions.
If the same error occurs again, take
note of the message displayed
(#****) and contact your place of