7.Plug the other end of the cable into the computer. (If there is a ground wire at the computer end of the cable, attach it to the ground connector at the back of the computer.)
Connecting the serial interface
Before using the printer’s serial interface, you need to select serial communication by changing the printer’s DIP switch settings. You may also need to change two other serial interface settings, baud rate and parity, before your printer and computer can communicate properly. See the section on setting DIP switches in Chapter 3 for more information.
The following steps show you how to connect your computer’s serial interface cable to the printer. If the connector on your cable has screws that need to be tightened with a screwdriver, you may need both a
1.Turn off both the printer and computer.
2.Open the printer’s interface cover by grasping it by the handholds on each side.