Specifications

Serial cable
a Connect the serial cable (with the null modem adapter
attached) to the PC’s 9- or 25-pin male serial port.
b Connect the other end of the cable to the printer’s serial
port (labeled “SERIAL”).
c Tighten the screws.
2 Turn on both the printer and the PC.
3 Test communication between the printer and the PC.
You can do this by sending a file from one of your applications, or
you can see the following section, “Testing Communication.”
To test communication between your printer and your PC, first create
a short file that ejects a page from the printer. Then send the file to
the printer.