Canon not the quality it proclaims to be

I have two Canon Maxify printers each just over a year old. Both failed their printer heads. One doesn't initialize the printer head and the other just prints cyan. I have checked the cartridge ports free and clean, even bought new cartridges. Same problem. How is it possible that these 2140 fail almost at the same time with the same issue yet is out of warrantee. Disgusted with Canon right now