Most printers have an expire date on the parts.  With Epson the message you are recieving means that you have printed to the maximum allowed.  If you take it to a shop all they will do is clean the ink waste pads and reset the counters, which will cost you about £40.  But help is out there.
http://www.ssclg.com/epsone.shtml.  Here you will find the software and instructions to do the job yourself and save a fortune.
                
 Dave
                
 July 2007