Pretty good article here
http://www.inkmagic.com/epson_clogged_printhead.htm Althought that webmaster needs to be shot or at least talked to sternly for that web page design. It's like someone read a book on HTML and used every single example on one page.
Cleaning tips are towards the middle of the page. Iso Alchohol and distilled water solution should be great for cleaning anything like that.