Clive..maybe it's reached the Limit from epson
have a look on
Here there is a resetter somewhere whith in the site if I remember rightly No 7
TR
1) Work directly with CSIC in Epson Stylus printers cartridges.
2) Reset or rewrite any chip using special addon device.
3) Freeze internal ink counters.
4) Reset internal ink counters even with empty cartridges.
5) Separate cleaning of color and black heads for all Epson inkjet printers, powerful cleaning mode.
6) Hot swapping of cartridges supported.
7) Resetting of protection counter (even then it is already full).
8) More then 100 different Epson printers supported