I powered on my Epson Workforce WF-3640 printer and the on light stays lit for about 10 seconds and then goes out. I have tried unplugging it to see if it will reset but it does not work.
venmartin Changed status to publish April 17, 2020
Your printer may be in an offline state. Hence, it may turn on for a while but may eventually enter this state. In this case, you should check that the connections are not loose. Also, inspect for any damages in the connections. It is possible that the wires may be old and, hence, may not work.
While you try this fix, you can see the other measures too: https://www.errorsdoc.com/epson/solved-why-is-my-epson-printer-say-offline-in-windows-10/