Canon MG 5320 Multi-function all in one Printer error code B-200

i have taken the print head out and i can get the printer to reset but when i try to print it goes back to code b-200. i have done all the main repairs that that code calls for , cleaned the print head , changed the inks , reset the printer both hard reset and printer head to left reset. they both work till i go to print then code comes back on . do you have any ideas what i can do. i am thinking about ordering a new print head but i am not sure it is worth it with printers like this being so cheap to buy. from my research this is a very common problem with these units failing .