Epson Printers, Cleaning Nozzles

[eastern]

I have an Epson P/S/C and have been using 3rd party cartridges in it, it also only gets used infrequently. I've noticed one or two of the colours are not coming through properly and I assume its due to blocked nozzles. Anyone know any way you can clean them? I did think of getting an old cartridge, putting in some cleaning fluid and running that through but I was wondering if there's an easier way. Thanks

[Pigletion]

In the Epson Status Monitor, you can test the heads and clean them. See web page if you need to download it

http://esupport.epson-europe.com/ProductHome.aspx?lng=en-GB&;data=s7ZZ7XD4cY1a9XP4vU002FO55TOkaEOPER4TgU002Fj1cumKwD8U003D&tc=6