2 flashes:
Printer is out of paper.
Paper does not feed.

Reload the paper and press the RESUME/CANCEL button on the printer.

3 flashes:
Front Cover is closed.
Paper jams.

If the Front Cover is closed, open it. The printer resumes printing.

If opening the Front Cover does not resolve the problem, or if the cover was open to begin with, the paper may be jammed. Remove the jammed paper, reload paper properly in the printer, then press the RESUME/CANCEL button on the printer.

4 flashes:
Ink tank is not installed.
Ink tank is not installed properly.
Ink may have run out.

• The ink tank is not installed.
  Install the ink tank.

• If the lamp on the ink tank is not lit, the ink tank may not be installed properly.
  Remove and reinstall the ink tank.

• If the lamp on the ink tank is flashing, ink may have run out.
  Replacing the ink tank is recommended.

If printing is in progress and you want to continue printing, press the printer's RESUME/CANCEL button with the ink tank installed. Then printing can continue.
Replacing the ink tank is recommended after the printing. The printer may be damaged if printing is continued under the ink out condition.

5 flashes:
Print Head is not installed.
Print Head is defective.

Follow the directions given in your setup manual to install the Print Head.

If the Print Head is already installed, remove the Print Head once and then reinstall it.

If the error is still not resolved, the Print Head may be damaged. Service is required.
If your product issue isn't resolved after following the steps above, or if you require additional help, please create or log in to your Canon Account to see your additional options.

7 flashes:
Ink tank is not installed in the correct position.

• Some ink tanks are not installed in the correct position.

• More than one ink tank of the same color are installed.

Confirm that the ink tanks are installed in the appropriate positions.

8 flashes:
Ink absorber is almost full.

The ink absorber is almost full.

Press the printer's RESUME/CANCEL button to continue printing. Service will soon be required.
If your product issue isn't resolved after following the step above, or if you require additional help, please create or log in to your Canon Account to see your additional options.

11 flashes:
Automatic Print Head Alignment failed.

• Print Head nozzles are clogged.
  Press the RESUME/CANCEL button to dismiss the error, and print the nozzle check pattern to check the status of the Print Head.

• Paper size other than A4 or Letter is loaded.
  Press the RESUME/CANCEL button to dismiss the error, then load one sheet of A4/Letter-sized plain paper.

• The Paper Output Slot is exposed to strong light.
  Press the RESUME/CANCEL button to dismiss the error, and then adjust your operating environment and/or the position of the printer so that the Paper Output Slot is not exposed directly to strong light.

After carrying out the above measures, if the problem continues after aligning the Print Head again, press the RESUME/CANCEL button to dismiss the error, and then perform Manual Print Head Alignment.

12 flashes:
Cannot print the contents on CREATIVE PARK PREMIUM.

You cannot print the contents on CREATIVE PARK PREMIUM.

When you print the contents on CREATIVE PARK PREMIUM, confirm the message on the computer screen, make sure that genuine Canon ink tanks are installed properly for all colors, then start printing again.

13 flashes:
Ink level cannot be detected.

The remaining ink level cannot be correctly detected. (The lamp on the ink tank flashes.)

Replace the ink tank and close the Top Cover.

Printing with an ink tank that was once empty may damage the printer.

If you want to continue printing in this condition, you need to release the function for detecting the remaining ink level. Press and hold the printer's RESUME/CANCEL button for at least 5 seconds, and then release it. With this operation, releasing the function for detecting the remaining ink level is memorized. Please be advised that Canon shall not be liable for any printer malfunction or damage caused by refilled ink tanks.

 If the function for detecting the remaining ink level is disabled, the ink tank is displayed in gray on the printer status monitor.

14 flashes:
Ink tank cannot be recognized.

• The ink tank is not compatible with this printer. (The lamp on the ink tank is off.)
  Install an appropriate ink tank.

• Appropriate ink tank is not installed.
  Printing cannot be executed because the ink tank is not compatible with this printer.
  Install an appropriate ink tank.
  
  If you want to cancel printing, press the printer's RESUME/CANCEL button.

15 flashes:
Ink tank cannot be recognized.

The ink tank cannot be recognized. (The lamp on the ink tank is off.)
Replace the ink tank.

16 flashes:
Ink has run out.

The ink has run out. (The lamp on the ink tank flashes.)
Replace the ink tank and close the Top Cover.

Printing under the current condition may damage the printer.

If you want to continue printing in this condition, you need to release the function for detecting the remaining ink level. Press and hold the printer's RESUME/CANCEL button for at least 5 seconds, and then release it. With this operation, releasing the function for detecting the remaining ink level is memorized. Please be advised that Canon shall not be liable for any malfunction or trouble which may be caused by continuation of printing under the ink out condition.