To Send a Print File to a Printer Through a Parallel Port

Open a DOS window (session).
At the system command line, enter copy /b <print_file> <port>
where:

print_file — is the print file to be sent.

port — is the parallel port on your system to which the printer is connected; for example, lpt1: or lpt2: (Wintel systems) or prn (DEC Alpha).

/b — switch specifying that the file is binary.