40
Connecting the Printer to the Host Computer
For Serial Interface
Connect the printer to a host computer by a serial interface (RS-232) cable.
1
Insert the interface cable connector firmly into the interface connector 
on the connector panel.
2
When using connectors equipped with screws, tighten the screws to 
secure the connectors firmly.
3
When using interface cables equipped with a grounding line, attach the 
ground line to the screw hole marked “FG” on the printer.
4
Connect the other end of the interface cable to the host computer.
WARNING
Be sure to turn off the power supply for both the printer and host computer before 
connecting the cables.
Use a null modem serial cable to connect the printer.