Cause

The feed slot cover on the rear tray is open.

What to Do

Slowly close the feed slot cover (A).

Next, press the printer's OK button to cancel the error.

 Once the feed slot cover is closed, the screen for setting rear tray paper information appears. Set paper information for the paper in the rear tray.

 To cancel printing, press the printer's Stop  button.

If your product issue was not resolved after following the steps above, or if you require additional help, please create or log in to your Canon Account to see your technical support options.

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