Article View: comp.protocols.appletalk
Article #3999Re: Sharing a Printer on Ethernet between Macs and Unix machines
From: Pond Scum
Date: Sat, 09 Jan 1993 23:45
Date: Sat, 09 Jan 1993 23:45
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2527 bytes
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
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Newsgroups: comp.protocols.appletalk Path: arc1-ca.pugleaf.net!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