MG5350 Printer problem - print head

MG5350 Printer problem - print head

In the middle of double sided printing( which I had done for the first time) the printer stopped printing in the middle of the run and came up with the UO52 error code which says "the type of print head is incorrect, install the correct print head". I have followed the instructions that Canon gave me but it still does not work. Can you help with this printer? We live in Hawarden, near Chester.