Error 0x9a - from my research means the large ribbon cable needs replacing, otherwise printer was working well before issue. The Epson Workforce WF-3640 Printer is a high-quality inkjet printer from the Epson brand, designed for home and office use. With Bluetooth, Ethernet, and USB 2.0 connectivity. I started to take apart but stopped, as thought someone with more time would want to do this properly. All screws kept, Ideal for those looking to repair or use for parts only.
eBay