I have an Epson SX130 too and so far no problems.
I did have a Google and saw no magic bullet, that could be an easy fix. It's just wading through and trial and error.
You could buy a new set of 4 compatible carts for £7 or so from eBay or amazon, but no guarantee they will work once the printer has decided it has a cartridge problem.
I spent many hours trying to fix my previous (Canon Pixma MP250 - £35) All-in-One cartridge problems but gave up in the end and bought the SX130.