Epson EPL-8000 User Manual page 224

Memory Options
Reinstalling the controller board
1.
Hold the controller board so the component side faces your
left, and fit its top and bottom edges into. the grooves inside
the slot. Gently slide the board about halfway into the printer.
2.
Make sure the lever on the bottom of the controller board is all
the way down. As you slide the board further into the printer,
make sure the lever's tab is positioned inside the opening in
the bracket, as shown below.
7-34
Options