The printer ejects blank, unprinted paper
The leading edge of the roll paper may have been trimmed
The leading edge of the roll paper may be trimmed if Trim edge first is not set to OFF in the touch screen menu.
Cutting the Leading Edge of Roll Paper Automatically
Is the print head nozzle blocked?
Print a nozzle check pattern to check the print head status.
Checking for Nozzle Clogging
Is the correct printer driver selected?
Print again using the correct printer driver for your printer.
If none of the above apply, there may be a printer malfunction.
Contact your Canon dealer for assistance.