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- Newsgroups: comp.protocols.appletalk
- Path: sparky!uunet!island!coney!hue
- From: hue@island.COM (Pond Scum)
- Subject: Re: Sharing a Printer on Ethernet between Macs and Unix machines
- Message-ID: <hue.726623136@coney>
- Sender: usenet@island.COM (The Usenet mail target)
- Organization: Island Graphics Corp.
- References: <ferch.726543290@swiss.ucs.ubc.ca>
- Date: Sat, 9 Jan 1993 23:45:36 GMT
- Lines: 37
-
- ferch@ucs.ubc.ca (Les Ferch) writes:
- >One product that promises to do this in a slick way is called "EtherWrite
- >LPR" from Compatible Systems. The product was announced in July but has
- >not shipped yet. I talked to the company this week and they think it will
- >be ready to ship sometime in February - we'll see. EtherWrite LPR is a box
- >that has two ports, one plugs into the LocalTalk port on a printer and the
- >other plugs into an ethernet network. It handles both EtherTalk from Macs
- >(i.e. printer shows up in Chooser) and TCP/IP (print from Unix systems
- >using lpr). It will have a SRP of about $1000.
-
- We just got a couple of Dayna Etherprint boxes for our printers which
- have only Localtalk and RS-232 ports. They were around $300 a piece.
- So you can save about $700 by just using something like CAP in conjunction
- with one of these boxes. I prefer to use PAP/Ethertalk over lpr/TCP/IP
- when I have a choice because PAP is bidirectional so you can get PostScript
- errors back from the printer - which is important to us.
-
- Because the printer's we have do not support Adobe's Binary Communication
- Protocol (BCP) over the serial ports, they are next to useless when
- connected to the serial port of a UNIX box. We cannot send binary image
- data to the printer, so the UNIX applications have to generate straight
- ASCII PostScript. When serving as print spoolers for the Macs, I use
- a filter which preprocesses the jobs before they go out. It looks for
- %%BeginBinary comments and converts binary image data to ASCII, and
- redefines the readstring operator. It doesn't work in all cases, and it's
- just plain slow to send twice as many bytes for each sample in an
- image at 38400 baud.
-
- So if you just have one or two printers, I'd go with the Etherprint boxes
- and CAP, but if you have a bunch of Localtalk and RS-232 only devices, you
- might consider a Gatorbox or something like that. I just saw an ad for
- something from Dayna called a "Pathfinder" for around $700. If that
- is a Localtalk<->Ethertalk bridge for $700, that's way cheaper than a
- Gatorbox.
-
-
- -Jonathan hue@island.COM
-