How to Clean a Clogged Epson ET-2550 Eco Tank Printer Print head

I realize that cleaning Printer Heads with different types of cleaners and solvents, it depends on the type of ink you are using. For example: let's say you are using ink from two different Companies. Let's say your Magenta is from one company, and your Cyan, Yellow, and Black is from a different Company, or this may clean ONLY Magenta, and Black and not Cyan and Yellow. This may work for one Company's Ink Product but not for another.