Sorry Isac, I have no evidence. I should have written that "I guess that Canon (like cheap HP ink printer, and not Brother as I wrote initially) has programmed a chip in the motherboard ....". Many years ago, I had a cheap HP ink printer that one da...
I have the same problem on my MP 810. Canon has (like Brother printer) programmed a chip in the motherboad to give you a false error message when you have printed a limited number of copies. Then they give you some false service tips, they do don't w...