If you cannot print when the printer is connected to the computer by a USB cable, check the problem following the questions below.
NOTE
For Macintosh users
This section describes the procedure for Windows as an example. For details on the procedure for Macintosh, see "Driver Guide." For details on the procedure for displaying "Driver Guide", see "Viewing the Driver Guide."
<Question 1> Is the printer turned ON?
Check if the Main Power indicator on the control panel is turned on.
Enable bi-directional communication and restart the computer and printer.
<Question 10> Try the following points.
Make resident software invalid including security software.
If any other devices are connected to your computer by USB connection, disconnect those unneeded.
If drivers or software of any other devices (USB connection) is installed on your computer, uninstall those unneeded.
Connect the USB cable to another USB port on your computer.
Connect the printer to another computer with a USB cable.
If printing does not work, proceed to <Question 11>.
<Question 11> Install the printer driver again.
For details on the procedure for installing the printer driver, see "Printer Driver Installation Guide."
For details on the procedure for viewing "Printer Driver Installation Guide", see "Installation."
If printing does not work, proceed to <Question 12>.
<Question 12> Uninstall the USB class driver, and then install the printer driver again.
For details on the procedure for uninstalling the USB class driver and installing the printer driver, see "Printer Driver Installation Guide" on the User Software CD-ROM.
For details on the procedure for viewing "Printer Driver Installation Guide", see "Installation."
If printing does not work, contact your local authorized Canon dealer.
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