Epson Artisan 700 end-of-life-ink-pads error returns after reset

I got the kiss of death "ink pads at end of life" error several months ago for my Epson Artisan 700. I wasn't going down without a fight! I removed the ink pads and connected the "Printer Potty" external reservoir. Reset the printer counter and have printed ever since with no problem. (I've had a CISS connected since I bought the printer)

Then today out of the blue I got another "ink pads at end of life" error. I went on Epson's site to get the free reset key, which works fine. The printer turns back on. But as soon as I try to print, the error msg returns. The machine blinks stupidly and won't respond. I've tried 4x resetting with Epson's key, turning computer off and back on, same results.

Is there a way to bypass this?