Epson TM-U200 Operator's Manual page 16

The Model with Parallel Interface
1. Make sure the printer and computer are turned off. Then, plug
the cable into the connector on the printer, as shown.
Note:
Squeeze the wire clips on the printer together until they lock in
place on both sides of the connector.
2. Connect the other end of the cable to the connector on your
computer.
Connecting the Printer to the Drawer
WARNING:
Use a drawer that matches printer specifications. Using an
improper drawer may damage the drawer as well as the
printer. (See Chapter 4 "Reference Information" for
information on the drawer.
1–6 Setting Up the Printer