Epson put a limit on the number of prints allowed before they reckon the waste-ink pads need replacing (or, at least, examining). Some dealers registered with Epson have access to special software which can (amongst the diagnostics, etc) reset these counters. Look for an Epson Express dealer. Charges vary. In Wellington, Shropshire, printers in warranty are serviced free. Out of warranty usually costs twelve quid - but that includes a full service.
Phil Headford, February 2008