The Serial Interface - Epson LQ-1050 User Manual

4. If your cable has a ground wire, connect it to the ground screw
beneath the interface connector.
5. 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.

The Serial Interface

Connect the serial interface cable as described below:
1. Make sure both your printer and computer are turned off.
Setting Up the Printer
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