Epson EPL-N7000 - Manual (Page 34)

30 Installing Options
Replacing the right cover
Follow these steps to replace the printer’s right cover after
installing the optional Hard Disk Drive or memory module:
1. Attach the right cover at the original position, as shown
below.
Insert the two pins located at the bottom edge of the cover into
the holes on the right side of the printer, and then insert the
three protruding parts on the left edge of the cover into the
matching holes on the printer. Make sure that the upper edge
of the cover fits the upper part of the printer.