222 Installing Options
5. Confirm that the notch on the top edge of the ROM module 
matches the catch on the socket. Then insert the ROM module 
horizontally until it stops as shown below. If the ROM module 
is correctly installed, the catch on the socket fits the notch on 
the ROM module and the end of the socket sticks out as shown 
below.
c
Caution:
❏ Do not force the ROM module into the socket.
❏ Be sure to insert the ROM module in the correct 
direction.
❏ Never remove the ROM module installed on the 
standard ROM socket (P). 
6. Reattach the cover to the right of the printer by inserting the 
three projections at the bottom of the cover to the notches on 
the printer, and then sliding the cover forward to firmly fit it 
to the printer. Make sure the projection at the top of the cover 
is inserted to the notch on the printer.