On my Epson Stylus Photo 830 I took out the pads, washed them out thoroughly, let them completely dry (took 48 hours), then put them back in and reassembled printer.
A fiddly and very messy job - best done outside or in a utility room as you don't want ink where it will stain flooring, furniture etc.
Use the SSC Service Utility program (downloadable from the internet) to reset your printer counter.
ChicksFan
September 2012
I can answer this question...
how can I solve waste ink pad issues, Epsom RX560?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix printers.