My printer failed today with this error, (Print Head not Recognised Error 1403) and try as I may I could not sort it out using the usual methods.
So after some on line searches I came accorss a solution, which I'm sharing hear for anyone with the sane issue, And reading the other forums it seems that this is a common fault.
I used a combination of of two solutions which consisted of firstly removing the printhead and washing thoroughly in warm water, then dry it off and clean the contacts with some fine wet and dry paper,
After erfitting the head I managed to get my MG5450 working again for some days now. Not sure how long it will last but at least it's working at the moment. The original fault showed that the printhead was the wrong one for the printer, how stupid is that.
By the way, the Canon help line is absolute rubbish. They firstly said they'd never heard of this fault.... LOL, I said have a look online, or just Google the fault. Then they suggested I send it back for repair at my cost, which incidentaly was more than the cost of a new printer.
Hope this helps someone.
