My canon MP600 will not print due to error message U052

[Shelby27]

Error message - The type of print head is incorrect - install the correct print head. I have not changed the print head - all lights are solid red with the exception of M and C. When you remove them and reinstall the lights are solid red. I have removed the print head and cleaned it - still no joy. Assistance please - why has this just stopped working.

[maryo]

i have this same problem, have you found a solution????

[Macauley]

My Canon print head work properly, still showing the same issue 

[Macauley]

My Canon print head can't work properly, still showing the same issue