Printhead choked up

I have a Canon BJC 4300 printer which I have not used for some time. Unfortunately it will not now print and the problem could be with a clogged up printhead. The printer itself was a smashing printer when it worked so I am loathe to throw it and buy another, but how can I clean the printhead.
Any advise?

 

i use my video head cleaning fluid

 

Just for future reference, you posted in the wrong forum. A mod will probably move it soon.

Alex

 

hate to be a bit thick but just how did you clean the head with the video cleaner?

 

i used to put the fluid in a jar top and stand the cartridge up in it and let it soak and then put some on a cotton bud and gently rub it.
they do sell a cleaning fluid that you run through the cartridge