I would like to add a word of encouragement for those who receive this fault code. Mine appeared on a Pixma 895 printer, but it seems to apply to many other models. I followed the advice from forum members, and removed the cartridges, then the print head. I watched a couple of videos about cleaning the print head, replaced everything and...nothing! the fault code came back. I cleaned the print head twice more, this time using a mild spirit based liquid (nail polish remover!) left the machine UNPLUGGED, (not just switched off) cleaned the heads again. Bingo, it owrks. Be patient, clean thoroughly, unplug the printer overnight. Good luck!
