gavaga

I recently purchased a license key for the Epson XP-640 (Order #398179). After installing the firmware and activating it, I was able to print a single nozzle test, but since then every time I try to print a page or do a nozzle test the printer gives me error 031002 (printhead overheating). I found another thread: https://forum.inkchip.net/topic/94-epson-xp-15000-print-error/ where the same issue was solved on the XP-15000 and was hoping I could get a solution for the XP-640 as well. Thanks!