Hi My printer has been working fine. Required an ink change did that now is making a knocking noise. I tried to print. Message appeared said ink not installed correctly. Removed inks and replaced ( one was loose) still same problem . tc carolann
I have only ever used Epson printers, so am not familiar with your Pixma. I would guess that perhaps a roller has become dislodged or as I said earlier some sort of object has got inside near the rollers, or the Print Heads or other moving part.
I would suggest it needs to be taken apart, perhaps only partially, for further investigation. Maybe a visit to your local PC dealer is needed.
This sort of thing is 'right-up-my-street' so to speak, if you are anywhere near me I would be happy to look at it for you. I am in the Portsmouth area.