Error code

Canon E04

CANONE04
Printer Error Code· An error or status code shown on a printer's display or its software.

What it means

The FINE cartridge is not installed properly.

How to fix it

  1. Remove the cartridge and reinstall it firmly until it clicks into position.
  2. Verify the cartridge is the correct model.

Not affiliated with Canon. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.