From owner-freebsd-questions@FreeBSD.ORG  Wed Feb 22 00:57:58 2012
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Date: 22 Feb 2012 00:57:34 -0000
Message-ID: <20120222005734.1353.qmail@joyce.lan>
From: "John Levine" <johnl@iecc.com>
To: freebsd-questions@freebsd.org
In-Reply-To: <15808.1329863585@tristatelogic.com>
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Cc: rfg@tristatelogic.com
Subject: Re: Info and questions about Brother[tm] multifunction machine
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>Port 515 is apparently implementing the "LPR" protocol described in RFC 1179.

Right.  See the "rp" option in /etc/printcap.  You can also use CUPS.

>Port 631 apparently implements "IPP" (Internet Printing Protocol) which is
>summarized here:

Works great with CUPS, which is vastly overimplented, but surprisingly easy
to use.

>Regarding port 9100, my local /etc/services file says:
>   jetdirect       9100/tcp   #HP JetDirect card

That's typically known as "socket".  Works great with CUPS.

>Port 25 is apparently implementing _something_ that sort-of vaguely acts
>like an SMTP server.

Why not read the manual and find out?  Click the Support tab on Brother's
web site and you can find lots and lots of documentation for that printer.

R's,
John