Serviced print heads and detached cables-where do I plug them back in?

[rbdaves]

I have an Epson ET-2720 which became clogged. I raised the upper panel to access the print heads and flushed them. When I raised this upper panel, there were two flat cables on the left that became detached. One cable is wider than the other. Where do I look for a place to plug these cables back in?

 

[rbdaves]

here’s a picture