Epson 500 Series User Manual

5. Connect the other end of the cable to the printer. If the printer

interface has retaining clips, squeeze them gently until they

snap into place.

6.

Connect the printer's power cable to a grounded electrical
socket.

You can use the COM1 port  to connect a serial device. such as a

serial printer or plotter. You could also connect a modem or

pointing device, such as a trackball or mouse.

Follow these steps to connect a serial device:

1. Make sure both the computer and the serial device are off.

or with a screwdriver.