I have had a Canon Pixma MG 5420 for several years now, and lately it has had trouble staying on my WIFI netwok. Frequently i have had to rconnect it. That is not the only problem, though. I now have an error code 1403. It says the printhead is incorrect and ishould install a correct one. All i have ever done is change the ink cartridges and never the printhead. Anyone hve an idea of what i should do? The easy solution is buy a new one, but I'd like to use the ink cartridges i just bought.
