Now that the test pattern has shown that your printer is working well, it’s time to hook it up to your computer. It is best to have both the printer and the computer turned off when you do this.
Remember that each computer system has its own way of communicating with a printer. If your computer expects to communicate through a Centronics parallel interface, all you need is a cable. If your computer requires any other kind of interface, you will also need an interface board.
If you don’t know what a Centronics parallel interface is, your computer manual or your dealer will tell you what you need. Then, once you have plugged your printer cable into your printer and computer, you will probably never think about interfaces again. (If you do want the technical specifications, however, you can find them in Appendix I.)
The first three steps in connecting your printer and computer are shown in Figure
13