When I bought my inkjetmall carts for my new P400, I was told to never update the firmware update. I installed the carts with Piezo Pro inks, got a good nozzle check, and then sometime after that, but before printing a photo, error lights showed up. The manual says this configuration of lights (power light is off, and paper and ink lights flashing) indicates that the print head is obstructed. It suggests turning off the printer, and back on again. If the error persists, contact Epson. There is no obvious obstruction. I have turned it off and on many times with no success. I noticed that when I originally installed the carts, it was very hard to press them into place till they snapped in. I wonder if that caused damage. I just took out all the carts, and replaced them with the Epson color carts (which snapped into place easily). This didn’t solve the problem.
So now I don’t know what to do. Should I call Epson, and not mention that I put in third party inks? And what if they say to update the firmware. Since it is a new printer, maybe the firmware is already updated…how can I tell if I have the latest version. (My version is FA14HC 05.23).
Help me OB1 Walker, you are my only hope.