Sidebar: Connecting a Printer to the Network
Printers that do not have a network interface can be
the network through the serial or parallel port. The
method is to use a serial cable to attach the printer
to a workstation
that has an unused serial port. If no workstation is
the printer, you can use a small print server such as
Network Print Server from MiLan. The Fastport will provide
connection from either the serial or parallel port on
to the network. The TranScript software from Adobe provides
filters to support the MiLan Fastport. The MiLan Fastport
a parallel and serial interface and can support a printer
interface simultaneously. If only one port on the MiLan
needed, use the parallel port as the first choice for
ease of configuration, and better performance.
When connecting a printer via a serial cable, make sure
that the baud
rates match between the printer and the workstation
or MiLan Fastport
to which it is connected. To check the baud rate at
which the printer
is set, print out a configuration page from the printer.
sure that the serial port has been enabled on the printer.
have verified that the baud rates match, attach a serial
pins 2, 3, and 7. Pins 2 and 3 are for transmit and
and pin 7 is for ground. The transmit and receive pins
must be crossed
at one end, which can be achieved by inserting a null
modem at one
end of the serial cable. After the serial cable has
test the connection by using the UNIX commands tip or
to print directly to the serial port.
The following illustrates how to use tip to test the
# tip -9600 /dev/ttya
...< a verbose PostScript message should appear > ...
The 9600 represents the baud rate that tip
will use for the connection. At this point, if you type
which will not echo back to the screen, the PostScript
prompt should appear. If it does not appear, check the
cable and printer
configuration. Typing showpage will print out a blank
to the printer. Then type ~. to exit from tip.
To test the printer serial connection using cat,
(stty -parity 9600;cat /etc/motd) > /dev/ttya
where 9600 is the baud rate for the connection. The
/etc/motd should print on the printer. If neither tip
nor cat produces output on the printer, stop and reexamine
the serial cable and printer configuration. Do not proceed
verified that the serial connection is communicating
Printers with a built-in network interface can be attached
network using the supplied interface. The only network
recommended is a LocalTalk interface. An EtherTalk interface
used. To test the network interface for a printer with
IP number, try pinging the printer. If the printer is
via AppleTalk, check to see if the printer is visible
in the Mac Chooser.